251836520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{484301}}^1$

素因数の和:484325

約数の個数: 32

約数和(自身を含む): 610220520

約数和(自身を除く): 358384000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 484301, 968602, 1937204, 2421505, 3874408, 4843010, 6295913, 9686020, 12591826, 19372040, 25183652, 31479565, 50367304, 62959130, 125918260, 251836520]

約数ペア:

[(1, 251836520), (2, 125918260), (4, 62959130), (5, 50367304), (8, 31479565), (10, 25183652), (13, 19372040), (20, 12591826), (26, 9686020), (40, 6295913), (52, 4843010), (65, 3874408), (104, 2421505), (130, 1937204), (260, 968602), (520, 484301)]