25535120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:640

約数の個数: 80

約数和(自身を含む): 65537472

約数和(自身を除く): 40002352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 571, 688, 860, 1040, 1118, 1142, 1720, 2236, 2284, 2795, 2855, 3440, 4472, 4568, 5590, 5710, 7423, 8944, 9136, 11180, 11420, 14846, 22360, 22840, 24553, 29692, 37115, 44720, 45680, 49106, 59384, 74230, 98212, 118768, 122765, 148460, 196424, 245530, 296920, 319189, 392848, 491060, 593840, 638378, 982120, 1276756, 1595945, 1964240, 2553512, 3191890, 5107024, 6383780, 12767560, 25535120]

約数ペア:

[(1, 25535120), (2, 12767560), (4, 6383780), (5, 5107024), (8, 3191890), (10, 2553512), (13, 1964240), (16, 1595945), (20, 1276756), (26, 982120), (40, 638378), (43, 593840), (52, 491060), (65, 392848), (80, 319189), (86, 296920), (104, 245530), (130, 196424), (172, 148460), (208, 122765), (215, 118768), (260, 98212), (344, 74230), (430, 59384), (520, 49106), (559, 45680), (571, 44720), (688, 37115), (860, 29692), (1040, 24553), (1118, 22840), (1142, 22360), (1720, 14846), (2236, 11420), (2284, 11180), (2795, 9136), (2855, 8944), (3440, 7423), (4472, 5710), (4568, 5590)]