1293886250

素因数分解:

$2^1\times 5^4\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:393

約数の個数: 80

約数和(自身を含む): 2510196480

約数和(自身を除く): 1216310230

約数列:

[1, 2, 5, 10, 25, 50, 61, 71, 122, 125, 142, 239, 250, 305, 355, 478, 610, 625, 710, 1195, 1250, 1525, 1775, 2390, 3050, 3550, 4331, 5975, 7625, 8662, 8875, 11950, 14579, 15250, 16969, 17750, 21655, 29158, 29875, 33938, 38125, 43310, 44375, 59750, 72895, 76250, 84845, 88750, 108275, 145790, 149375, 169690, 216550, 298750, 364475, 424225, 541375, 728950, 848450, 1035109, 1082750, 1822375, 2070218, 2121125, 2706875, 3644750, 4242250, 5175545, 5413750, 9111875, 10351090, 10605625, 18223750, 21211250, 25877725, 51755450, 129388625, 258777250, 646943125, 1293886250]

約数ペア:

[(1, 1293886250), (2, 646943125), (5, 258777250), (10, 129388625), (25, 51755450), (50, 25877725), (61, 21211250), (71, 18223750), (122, 10605625), (125, 10351090), (142, 9111875), (239, 5413750), (250, 5175545), (305, 4242250), (355, 3644750), (478, 2706875), (610, 2121125), (625, 2070218), (710, 1822375), (1195, 1082750), (1250, 1035109), (1525, 848450), (1775, 728950), (2390, 541375), (3050, 424225), (3550, 364475), (4331, 298750), (5975, 216550), (7625, 169690), (8662, 149375), (8875, 145790), (11950, 108275), (14579, 88750), (15250, 84845), (16969, 76250), (17750, 72895), (21655, 59750), (29158, 44375), (29875, 43310), (33938, 38125)]