286447720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{550861}}^1$

素因数の和:550885

約数の個数: 32

約数和(自身を含む): 694086120

約数和(自身を除く): 407638400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 550861, 1101722, 2203444, 2754305, 4406888, 5508610, 7161193, 11017220, 14322386, 22034440, 28644772, 35805965, 57289544, 71611930, 143223860, 286447720]

約数ペア:

[(1, 286447720), (2, 143223860), (4, 71611930), (5, 57289544), (8, 35805965), (10, 28644772), (13, 22034440), (20, 14322386), (26, 11017220), (40, 7161193), (52, 5508610), (65, 4406888), (104, 2754305), (130, 2203444), (260, 1101722), (520, 550861)]