221277160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{425533}}^1$

素因数の和:425557

約数の個数: 32

約数和(自身を含む): 536172840

約数和(自身を除く): 314895680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 425533, 851066, 1702132, 2127665, 3404264, 4255330, 5531929, 8510660, 11063858, 17021320, 22127716, 27659645, 44255432, 55319290, 110638580, 221277160]

約数ペア:

[(1, 221277160), (2, 110638580), (4, 55319290), (5, 44255432), (8, 27659645), (10, 22127716), (13, 17021320), (20, 11063858), (26, 8510660), (40, 5531929), (52, 4255330), (65, 3404264), (104, 2127665), (130, 1702132), (260, 851066), (520, 425533)]