18118750

素因数分解:

$2^1\times 5^5\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:263

約数の個数: 48

約数和(自身を含む): 36747648

約数和(自身を除く): 18628898

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 223, 250, 325, 446, 625, 650, 1115, 1250, 1625, 2230, 2899, 3125, 3250, 5575, 5798, 6250, 8125, 11150, 14495, 16250, 27875, 28990, 40625, 55750, 72475, 81250, 139375, 144950, 278750, 362375, 696875, 724750, 1393750, 1811875, 3623750, 9059375, 18118750]

約数ペア:

[(1, 18118750), (2, 9059375), (5, 3623750), (10, 1811875), (13, 1393750), (25, 724750), (26, 696875), (50, 362375), (65, 278750), (125, 144950), (130, 139375), (223, 81250), (250, 72475), (325, 55750), (446, 40625), (625, 28990), (650, 27875), (1115, 16250), (1250, 14495), (1625, 11150), (2230, 8125), (2899, 6250), (3125, 5798), (3250, 5575)]