420991740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1$

素因数の和:621

約数の個数: 288

約数和(自身を含む): 1535526720

約数和(自身を除く): 1114534980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 19, 20, 26, 30, 34, 36, 38, 39, 45, 51, 52, 57, 60, 65, 68, 76, 78, 85, 90, 95, 102, 114, 117, 130, 153, 156, 170, 171, 180, 190, 195, 204, 221, 228, 234, 247, 255, 260, 285, 306, 323, 340, 342, 380, 390, 442, 468, 494, 510, 557, 570, 585, 612, 646, 663, 684, 741, 765, 780, 855, 884, 969, 988, 1020, 1105, 1114, 1140, 1170, 1235, 1292, 1326, 1482, 1530, 1615, 1671, 1710, 1938, 1989, 2210, 2223, 2228, 2340, 2470, 2652, 2785, 2907, 2964, 3060, 3230, 3315, 3342, 3420, 3705, 3876, 3978, 4199, 4420, 4446, 4845, 4940, 5013, 5570, 5814, 6460, 6630, 6684, 7241, 7410, 7956, 8355, 8398, 8892, 9469, 9690, 9945, 10026, 10583, 11115, 11140, 11628, 12597, 13260, 14482, 14535, 14820, 16710, 16796, 18938, 19380, 19890, 20052, 20995, 21166, 21723, 22230, 25065, 25194, 28407, 28964, 29070, 31749, 33420, 36205, 37791, 37876, 39780, 41990, 42332, 43446, 44460, 47345, 50130, 50388, 52915, 56814, 58140, 62985, 63498, 65169, 72410, 75582, 83980, 85221, 86892, 94690, 95247, 100260, 105830, 108615, 113628, 123097, 125970, 126996, 130338, 137579, 142035, 144820, 151164, 158745, 170442, 179911, 188955, 189380, 190494, 211660, 217230, 246194, 251940, 260676, 275158, 284070, 317490, 325845, 340884, 359822, 369291, 377910, 380988, 412737, 426105, 434460, 476235, 492388, 539733, 550316, 568140, 615485, 634980, 651690, 687895, 719644, 738582, 755820, 825474, 852210, 899555, 952470, 1079466, 1107873, 1230970, 1238211, 1303380, 1375790, 1477164, 1619199, 1650948, 1704420, 1799110, 1846455, 1904940, 2063685, 2158932, 2215746, 2338843, 2461940, 2476422, 2698665, 2751580, 3238398, 3598220, 3692910, 4127370, 4431492, 4677686, 4952844, 5397330, 5539365, 6191055, 6476796, 7016529, 7385820, 8095995, 8254740, 9355372, 10794660, 11078730, 11694215, 12382110, 14033058, 16191990, 21049587, 22157460, 23388430, 24764220, 28066116, 32383980, 35082645, 42099174, 46776860, 70165290, 84198348, 105247935, 140330580, 210495870, 420991740]

約数ペア:

[(1, 420991740), (2, 210495870), (3, 140330580), (4, 105247935), (5, 84198348), (6, 70165290), (9, 46776860), (10, 42099174), (12, 35082645), (13, 32383980), (15, 28066116), (17, 24764220), (18, 23388430), (19, 22157460), (20, 21049587), (26, 16191990), (30, 14033058), (34, 12382110), (36, 11694215), (38, 11078730), (39, 10794660), (45, 9355372), (51, 8254740), (52, 8095995), (57, 7385820), (60, 7016529), (65, 6476796), (68, 6191055), (76, 5539365), (78, 5397330), (85, 4952844), (90, 4677686), (95, 4431492), (102, 4127370), (114, 3692910), (117, 3598220), (130, 3238398), (153, 2751580), (156, 2698665), (170, 2476422), (171, 2461940), (180, 2338843), (190, 2215746), (195, 2158932), (204, 2063685), (221, 1904940), (228, 1846455), (234, 1799110), (247, 1704420), (255, 1650948), (260, 1619199), (285, 1477164), (306, 1375790), (323, 1303380), (340, 1238211), (342, 1230970), (380, 1107873), (390, 1079466), (442, 952470), (468, 899555), (494, 852210), (510, 825474), (557, 755820), (570, 738582), (585, 719644), (612, 687895), (646, 651690), (663, 634980), (684, 615485), (741, 568140), (765, 550316), (780, 539733), (855, 492388), (884, 476235), (969, 434460), (988, 426105), (1020, 412737), (1105, 380988), (1114, 377910), (1140, 369291), (1170, 359822), (1235, 340884), (1292, 325845), (1326, 317490), (1482, 284070), (1530, 275158), (1615, 260676), (1671, 251940), (1710, 246194), (1938, 217230), (1989, 211660), (2210, 190494), (2223, 189380), (2228, 188955), (2340, 179911), (2470, 170442), (2652, 158745), (2785, 151164), (2907, 144820), (2964, 142035), (3060, 137579), (3230, 130338), (3315, 126996), (3342, 125970), (3420, 123097), (3705, 113628), (3876, 108615), (3978, 105830), (4199, 100260), (4420, 95247), (4446, 94690), (4845, 86892), (4940, 85221), (5013, 83980), (5570, 75582), (5814, 72410), (6460, 65169), (6630, 63498), (6684, 62985), (7241, 58140), (7410, 56814), (7956, 52915), (8355, 50388), (8398, 50130), (8892, 47345), (9469, 44460), (9690, 43446), (9945, 42332), (10026, 41990), (10583, 39780), (11115, 37876), (11140, 37791), (11628, 36205), (12597, 33420), (13260, 31749), (14482, 29070), (14535, 28964), (14820, 28407), (16710, 25194), (16796, 25065), (18938, 22230), (19380, 21723), (19890, 21166), (20052, 20995)]