90915500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:300

約数の個数: 96

約数和(自身を含む): 217945728

約数和(自身を除く): 127030228

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 71, 100, 125, 130, 142, 197, 250, 260, 284, 325, 355, 394, 500, 650, 710, 788, 923, 985, 1300, 1420, 1625, 1775, 1846, 1970, 2561, 3250, 3550, 3692, 3940, 4615, 4925, 5122, 6500, 7100, 8875, 9230, 9850, 10244, 12805, 13987, 17750, 18460, 19700, 23075, 24625, 25610, 27974, 35500, 46150, 49250, 51220, 55948, 64025, 69935, 92300, 98500, 115375, 128050, 139870, 181831, 230750, 256100, 279740, 320125, 349675, 363662, 461500, 640250, 699350, 727324, 909155, 1280500, 1398700, 1748375, 1818310, 3496750, 3636620, 4545775, 6993500, 9091550, 18183100, 22728875, 45457750, 90915500]

約数ペア:

[(1, 90915500), (2, 45457750), (4, 22728875), (5, 18183100), (10, 9091550), (13, 6993500), (20, 4545775), (25, 3636620), (26, 3496750), (50, 1818310), (52, 1748375), (65, 1398700), (71, 1280500), (100, 909155), (125, 727324), (130, 699350), (142, 640250), (197, 461500), (250, 363662), (260, 349675), (284, 320125), (325, 279740), (355, 256100), (394, 230750), (500, 181831), (650, 139870), (710, 128050), (788, 115375), (923, 98500), (985, 92300), (1300, 69935), (1420, 64025), (1625, 55948), (1775, 51220), (1846, 49250), (1970, 46150), (2561, 35500), (3250, 27974), (3550, 25610), (3692, 24625), (3940, 23075), (4615, 19700), (4925, 18460), (5122, 17750), (6500, 13987), (7100, 12805), (8875, 10244), (9230, 9850)]