8217040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7901}}^1$

素因数の和:7927

約数の個数: 40

約数和(自身を含む): 20576808

約数和(自身を除く): 12359768

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 7901, 15802, 31604, 39505, 63208, 79010, 102713, 126416, 158020, 205426, 316040, 410852, 513565, 632080, 821704, 1027130, 1643408, 2054260, 4108520, 8217040]

約数ペア:

[(1, 8217040), (2, 4108520), (4, 2054260), (5, 1643408), (8, 1027130), (10, 821704), (13, 632080), (16, 513565), (20, 410852), (26, 316040), (40, 205426), (52, 158020), (65, 126416), (80, 102713), (104, 79010), (130, 63208), (208, 39505), (260, 31604), (520, 15802), (1040, 7901)]