28135920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1987}}^1$

素因数の和:2062

約数の個数: 80

約数和(自身を含む): 88744320

約数和(自身を除く): 60608400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 59, 60, 80, 118, 120, 177, 236, 240, 295, 354, 472, 590, 708, 885, 944, 1180, 1416, 1770, 1987, 2360, 2832, 3540, 3974, 4720, 5961, 7080, 7948, 9935, 11922, 14160, 15896, 19870, 23844, 29805, 31792, 39740, 47688, 59610, 79480, 95376, 117233, 119220, 158960, 234466, 238440, 351699, 468932, 476880, 586165, 703398, 937864, 1172330, 1406796, 1758495, 1875728, 2344660, 2813592, 3516990, 4689320, 5627184, 7033980, 9378640, 14067960, 28135920]

約数ペア:

[(1, 28135920), (2, 14067960), (3, 9378640), (4, 7033980), (5, 5627184), (6, 4689320), (8, 3516990), (10, 2813592), (12, 2344660), (15, 1875728), (16, 1758495), (20, 1406796), (24, 1172330), (30, 937864), (40, 703398), (48, 586165), (59, 476880), (60, 468932), (80, 351699), (118, 238440), (120, 234466), (177, 158960), (236, 119220), (240, 117233), (295, 95376), (354, 79480), (472, 59610), (590, 47688), (708, 39740), (885, 31792), (944, 29805), (1180, 23844), (1416, 19870), (1770, 15896), (1987, 14160), (2360, 11922), (2832, 9935), (3540, 7948), (3974, 7080), (4720, 5961)]