281920860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1$

素因数の和:437

約数の個数: 288

約数和(自身を含む): 1029188160

約数和(自身を除く): 747267300

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, 373, 380, 390, 442, 468, 494, 510, 570, 585, 612, 646, 663, 684, 741, 746, 765, 780, 855, 884, 969, 988, 1020, 1105, 1119, 1140, 1170, 1235, 1292, 1326, 1482, 1492, 1530, 1615, 1710, 1865, 1938, 1989, 2210, 2223, 2238, 2340, 2470, 2652, 2907, 2964, 3060, 3230, 3315, 3357, 3420, 3705, 3730, 3876, 3978, 4199, 4420, 4446, 4476, 4845, 4849, 4940, 5595, 5814, 6341, 6460, 6630, 6714, 7087, 7410, 7460, 7956, 8398, 8892, 9690, 9698, 9945, 11115, 11190, 11628, 12597, 12682, 13260, 13428, 14174, 14535, 14547, 14820, 16785, 16796, 19023, 19380, 19396, 19890, 20995, 21261, 22230, 22380, 24245, 25194, 25364, 28348, 29070, 29094, 31705, 33570, 35435, 37791, 38046, 39780, 41990, 42522, 43641, 44460, 48490, 50388, 57069, 58140, 58188, 62985, 63410, 63783, 67140, 70870, 72735, 75582, 76092, 82433, 83980, 85044, 87282, 92131, 95115, 96980, 106305, 114138, 120479, 125970, 126820, 127566, 141740, 145470, 151164, 164866, 174564, 184262, 188955, 190230, 212610, 218205, 228276, 240958, 247299, 251940, 255132, 276393, 285345, 290940, 318915, 329732, 361437, 368524, 377910, 380460, 412165, 425220, 436410, 460655, 481916, 494598, 552786, 570690, 602395, 637830, 722874, 741897, 755820, 824330, 829179, 872820, 921310, 989196, 1084311, 1105572, 1141380, 1204790, 1236495, 1275660, 1381965, 1445748, 1483794, 1566227, 1648660, 1658358, 1807185, 1842620, 2168622, 2409580, 2472990, 2763930, 2967588, 3132454, 3316716, 3614370, 3709485, 4145895, 4337244, 4698681, 4945980, 5421555, 5527860, 6264908, 7228740, 7418970, 7831135, 8291790, 9397362, 10843110, 14096043, 14837940, 15662270, 16583580, 18794724, 21686220, 23493405, 28192086, 31324540, 46986810, 56384172, 70480215, 93973620, 140960430, 281920860]

約数ペア:

[(1, 281920860), (2, 140960430), (3, 93973620), (4, 70480215), (5, 56384172), (6, 46986810), (9, 31324540), (10, 28192086), (12, 23493405), (13, 21686220), (15, 18794724), (17, 16583580), (18, 15662270), (19, 14837940), (20, 14096043), (26, 10843110), (30, 9397362), (34, 8291790), (36, 7831135), (38, 7418970), (39, 7228740), (45, 6264908), (51, 5527860), (52, 5421555), (57, 4945980), (60, 4698681), (65, 4337244), (68, 4145895), (76, 3709485), (78, 3614370), (85, 3316716), (90, 3132454), (95, 2967588), (102, 2763930), (114, 2472990), (117, 2409580), (130, 2168622), (153, 1842620), (156, 1807185), (170, 1658358), (171, 1648660), (180, 1566227), (190, 1483794), (195, 1445748), (204, 1381965), (221, 1275660), (228, 1236495), (234, 1204790), (247, 1141380), (255, 1105572), (260, 1084311), (285, 989196), (306, 921310), (323, 872820), (340, 829179), (342, 824330), (373, 755820), (380, 741897), (390, 722874), (442, 637830), (468, 602395), (494, 570690), (510, 552786), (570, 494598), (585, 481916), (612, 460655), (646, 436410), (663, 425220), (684, 412165), (741, 380460), (746, 377910), (765, 368524), (780, 361437), (855, 329732), (884, 318915), (969, 290940), (988, 285345), (1020, 276393), (1105, 255132), (1119, 251940), (1140, 247299), (1170, 240958), (1235, 228276), (1292, 218205), (1326, 212610), (1482, 190230), (1492, 188955), (1530, 184262), (1615, 174564), (1710, 164866), (1865, 151164), (1938, 145470), (1989, 141740), (2210, 127566), (2223, 126820), (2238, 125970), (2340, 120479), (2470, 114138), (2652, 106305), (2907, 96980), (2964, 95115), (3060, 92131), (3230, 87282), (3315, 85044), (3357, 83980), (3420, 82433), (3705, 76092), (3730, 75582), (3876, 72735), (3978, 70870), (4199, 67140), (4420, 63783), (4446, 63410), (4476, 62985), (4845, 58188), (4849, 58140), (4940, 57069), (5595, 50388), (5814, 48490), (6341, 44460), (6460, 43641), (6630, 42522), (6714, 41990), (7087, 39780), (7410, 38046), (7460, 37791), (7956, 35435), (8398, 33570), (8892, 31705), (9690, 29094), (9698, 29070), (9945, 28348), (11115, 25364), (11190, 25194), (11628, 24245), (12597, 22380), (12682, 22230), (13260, 21261), (13428, 20995), (14174, 19890), (14535, 19396), (14547, 19380), (14820, 19023), (16785, 16796)]