18883540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1231}}^1$

素因数の和:1312

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 24581420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 236, 260, 295, 590, 767, 1180, 1231, 1534, 2462, 3068, 3835, 4924, 6155, 7670, 12310, 15340, 16003, 24620, 32006, 64012, 72629, 80015, 145258, 160030, 290516, 320060, 363145, 726290, 944177, 1452580, 1888354, 3776708, 4720885, 9441770, 18883540]

約数ペア:

[(1, 18883540), (2, 9441770), (4, 4720885), (5, 3776708), (10, 1888354), (13, 1452580), (20, 944177), (26, 726290), (52, 363145), (59, 320060), (65, 290516), (118, 160030), (130, 145258), (236, 80015), (260, 72629), (295, 64012), (590, 32006), (767, 24620), (1180, 16003), (1231, 15340), (1534, 12310), (2462, 7670), (3068, 6155), (3835, 4924)]