77818520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8803}}^1$

素因数の和:8844

約数の個数: 64

約数和(自身を含む): 199674720

約数和(自身を除く): 121856200

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 8803, 8840, 17606, 35212, 44015, 70424, 88030, 114439, 149651, 176060, 228878, 299302, 352120, 457756, 572195, 598604, 748255, 915512, 1144390, 1197208, 1496510, 1945463, 2288780, 2993020, 3890926, 4577560, 5986040, 7781852, 9727315, 15563704, 19454630, 38909260, 77818520]

約数ペア:

[(1, 77818520), (2, 38909260), (4, 19454630), (5, 15563704), (8, 9727315), (10, 7781852), (13, 5986040), (17, 4577560), (20, 3890926), (26, 2993020), (34, 2288780), (40, 1945463), (52, 1496510), (65, 1197208), (68, 1144390), (85, 915512), (104, 748255), (130, 598604), (136, 572195), (170, 457756), (221, 352120), (260, 299302), (340, 228878), (442, 176060), (520, 149651), (680, 114439), (884, 88030), (1105, 70424), (1768, 44015), (2210, 35212), (4420, 17606), (8803, 8840)]