398840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1$

素因数の和:96

約数の個数: 48

約数和(自身を含む): 988200

約数和(自身を除く): 589360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 59, 65, 104, 118, 130, 169, 236, 260, 295, 338, 472, 520, 590, 676, 767, 845, 1180, 1352, 1534, 1690, 2360, 3068, 3380, 3835, 6136, 6760, 7670, 9971, 15340, 19942, 30680, 39884, 49855, 79768, 99710, 199420, 398840]

約数ペア:

[(1, 398840), (2, 199420), (4, 99710), (5, 79768), (8, 49855), (10, 39884), (13, 30680), (20, 19942), (26, 15340), (40, 9971), (52, 7670), (59, 6760), (65, 6136), (104, 3835), (118, 3380), (130, 3068), (169, 2360), (236, 1690), (260, 1534), (295, 1352), (338, 1180), (472, 845), (520, 767), (590, 676)]