181739480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349499}}^1$

素因数の和:349523

約数の個数: 32

約数和(自身を含む): 440370000

約数和(自身を除く): 258630520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 349499, 698998, 1397996, 1747495, 2795992, 3494990, 4543487, 6989980, 9086974, 13979960, 18173948, 22717435, 36347896, 45434870, 90869740, 181739480]

約数ペア:

[(1, 181739480), (2, 90869740), (4, 45434870), (5, 36347896), (8, 22717435), (10, 18173948), (13, 13979960), (20, 9086974), (26, 6989980), (40, 4543487), (52, 3494990), (65, 2795992), (104, 1747495), (130, 1397996), (260, 698998), (520, 349499)]