20090970380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6481}}^1\times {\mathrm{11923}}^1$

素因数の和:18426

約数の個数: 48

約数和(自身を含む): 45447324384

約数和(自身を除く): 25356354004

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 6481, 11923, 12962, 23846, 25924, 32405, 47692, 59615, 64810, 84253, 119230, 129620, 154999, 168506, 238460, 309998, 337012, 421265, 619996, 774995, 842530, 1549990, 1685060, 3099980, 77272963, 154545926, 309091852, 386364815, 772729630, 1004548519, 1545459260, 2009097038, 4018194076, 5022742595, 10045485190, 20090970380]

約数ペア:

[(1, 20090970380), (2, 10045485190), (4, 5022742595), (5, 4018194076), (10, 2009097038), (13, 1545459260), (20, 1004548519), (26, 772729630), (52, 386364815), (65, 309091852), (130, 154545926), (260, 77272963), (6481, 3099980), (11923, 1685060), (12962, 1549990), (23846, 842530), (25924, 774995), (32405, 619996), (47692, 421265), (59615, 337012), (64810, 309998), (84253, 238460), (119230, 168506), (129620, 154999)]