20869620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8089}}^1$

素因数の和:8144

約数の個数: 48

約数和(自身を含む): 59801280

約数和(自身を除く): 38931660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 8089, 16178, 24267, 32356, 40445, 48534, 80890, 97068, 121335, 161780, 242670, 347827, 485340, 695654, 1043481, 1391308, 1739135, 2086962, 3478270, 4173924, 5217405, 6956540, 10434810, 20869620]

約数ペア:

[(1, 20869620), (2, 10434810), (3, 6956540), (4, 5217405), (5, 4173924), (6, 3478270), (10, 2086962), (12, 1739135), (15, 1391308), (20, 1043481), (30, 695654), (43, 485340), (60, 347827), (86, 242670), (129, 161780), (172, 121335), (215, 97068), (258, 80890), (430, 48534), (516, 40445), (645, 32356), (860, 24267), (1290, 16178), (2580, 8089)]