12767560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:638

約数の個数: 64

約数和(自身を含む): 31711680

約数和(自身を除く): 18944120

約数列:

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

約数ペア:

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