18183100

素因数分解:

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

素因数の和:295

約数の個数: 72

約数和(自身を含む): 43309728

約数和(自身を除く): 25126628

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 71, 100, 130, 142, 197, 260, 284, 325, 355, 394, 650, 710, 788, 923, 985, 1300, 1420, 1775, 1846, 1970, 2561, 3550, 3692, 3940, 4615, 4925, 5122, 7100, 9230, 9850, 10244, 12805, 13987, 18460, 19700, 23075, 25610, 27974, 46150, 51220, 55948, 64025, 69935, 92300, 128050, 139870, 181831, 256100, 279740, 349675, 363662, 699350, 727324, 909155, 1398700, 1818310, 3636620, 4545775, 9091550, 18183100]

約数ペア:

[(1, 18183100), (2, 9091550), (4, 4545775), (5, 3636620), (10, 1818310), (13, 1398700), (20, 909155), (25, 727324), (26, 699350), (50, 363662), (52, 349675), (65, 279740), (71, 256100), (100, 181831), (130, 139870), (142, 128050), (197, 92300), (260, 69935), (284, 64025), (325, 55948), (355, 51220), (394, 46150), (650, 27974), (710, 25610), (788, 23075), (923, 19700), (985, 18460), (1300, 13987), (1420, 12805), (1775, 10244), (1846, 9850), (1970, 9230), (2561, 7100), (3550, 5122), (3692, 4925), (3940, 4615)]