19651320

素因数分解:

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

素因数の和:79

約数の個数: 288

約数和(自身を含む): 77079600

約数和(自身を除く): 57428280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 17, 18, 19, 20, 24, 26, 30, 34, 36, 38, 39, 40, 45, 51, 52, 57, 60, 65, 68, 72, 76, 78, 85, 90, 95, 102, 104, 114, 117, 120, 130, 136, 152, 153, 156, 169, 170, 171, 180, 190, 195, 204, 221, 228, 234, 247, 255, 260, 285, 306, 312, 323, 338, 340, 342, 360, 380, 390, 408, 442, 456, 468, 494, 507, 510, 520, 570, 585, 612, 646, 663, 676, 680, 684, 741, 760, 765, 780, 845, 855, 884, 936, 969, 988, 1014, 1020, 1105, 1140, 1170, 1224, 1235, 1292, 1326, 1352, 1368, 1482, 1521, 1530, 1560, 1615, 1690, 1710, 1768, 1938, 1976, 1989, 2028, 2040, 2210, 2223, 2280, 2340, 2470, 2535, 2584, 2652, 2873, 2907, 2964, 3042, 3060, 3211, 3230, 3315, 3380, 3420, 3705, 3876, 3978, 4056, 4199, 4420, 4446, 4680, 4845, 4940, 5070, 5304, 5746, 5814, 5928, 6084, 6120, 6422, 6460, 6630, 6760, 6840, 7410, 7605, 7752, 7956, 8398, 8619, 8840, 8892, 9633, 9690, 9880, 9945, 10140, 11115, 11492, 11628, 12168, 12597, 12844, 12920, 13260, 14365, 14535, 14820, 15210, 15912, 16055, 16796, 17238, 17784, 19266, 19380, 19890, 20280, 20995, 22230, 22984, 23256, 25194, 25688, 25857, 26520, 28730, 28899, 29070, 29640, 30420, 32110, 33592, 34476, 37791, 38532, 38760, 39780, 41990, 43095, 44460, 48165, 50388, 51714, 54587, 57460, 57798, 58140, 60840, 62985, 64220, 68952, 75582, 77064, 79560, 83980, 86190, 88920, 96330, 100776, 103428, 109174, 114920, 115596, 116280, 125970, 128440, 129285, 144495, 151164, 163761, 167960, 172380, 188955, 192660, 206856, 218348, 231192, 251940, 258570, 272935, 288990, 302328, 327522, 344760, 377910, 385320, 436696, 491283, 503880, 517140, 545870, 577980, 655044, 755820, 818805, 982566, 1034280, 1091740, 1155960, 1310088, 1511640, 1637610, 1965132, 2183480, 2456415, 3275220, 3930264, 4912830, 6550440, 9825660, 19651320]

約数ペア:

[(1, 19651320), (2, 9825660), (3, 6550440), (4, 4912830), (5, 3930264), (6, 3275220), (8, 2456415), (9, 2183480), (10, 1965132), (12, 1637610), (13, 1511640), (15, 1310088), (17, 1155960), (18, 1091740), (19, 1034280), (20, 982566), (24, 818805), (26, 755820), (30, 655044), (34, 577980), (36, 545870), (38, 517140), (39, 503880), (40, 491283), (45, 436696), (51, 385320), (52, 377910), (57, 344760), (60, 327522), (65, 302328), (68, 288990), (72, 272935), (76, 258570), (78, 251940), (85, 231192), (90, 218348), (95, 206856), (102, 192660), (104, 188955), (114, 172380), (117, 167960), (120, 163761), (130, 151164), (136, 144495), (152, 129285), (153, 128440), (156, 125970), (169, 116280), (170, 115596), (171, 114920), (180, 109174), (190, 103428), (195, 100776), (204, 96330), (221, 88920), (228, 86190), (234, 83980), (247, 79560), (255, 77064), (260, 75582), (285, 68952), (306, 64220), (312, 62985), (323, 60840), (338, 58140), (340, 57798), (342, 57460), (360, 54587), (380, 51714), (390, 50388), (408, 48165), (442, 44460), (456, 43095), (468, 41990), (494, 39780), (507, 38760), (510, 38532), (520, 37791), (570, 34476), (585, 33592), (612, 32110), (646, 30420), (663, 29640), (676, 29070), (680, 28899), (684, 28730), (741, 26520), (760, 25857), (765, 25688), (780, 25194), (845, 23256), (855, 22984), (884, 22230), (936, 20995), (969, 20280), (988, 19890), (1014, 19380), (1020, 19266), (1105, 17784), (1140, 17238), (1170, 16796), (1224, 16055), (1235, 15912), (1292, 15210), (1326, 14820), (1352, 14535), (1368, 14365), (1482, 13260), (1521, 12920), (1530, 12844), (1560, 12597), (1615, 12168), (1690, 11628), (1710, 11492), (1768, 11115), (1938, 10140), (1976, 9945), (1989, 9880), (2028, 9690), (2040, 9633), (2210, 8892), (2223, 8840), (2280, 8619), (2340, 8398), (2470, 7956), (2535, 7752), (2584, 7605), (2652, 7410), (2873, 6840), (2907, 6760), (2964, 6630), (3042, 6460), (3060, 6422), (3211, 6120), (3230, 6084), (3315, 5928), (3380, 5814), (3420, 5746), (3705, 5304), (3876, 5070), (3978, 4940), (4056, 4845), (4199, 4680), (4420, 4446)]