20702925340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{248177}}^1$

素因数の和:248326

約数の個数: 48

約数和(自身を含む): 44946028512

約数和(自身を除く): 24243103172

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 97, 172, 194, 215, 388, 430, 485, 860, 970, 1940, 4171, 8342, 16684, 20855, 41710, 83420, 248177, 496354, 992708, 1240885, 2481770, 4963540, 10671611, 21343222, 24073169, 42686444, 48146338, 53358055, 96292676, 106716110, 120365845, 213432220, 240731690, 481463380, 1035146267, 2070292534, 4140585068, 5175731335, 10351462670, 20702925340]

約数ペア:

[(1, 20702925340), (2, 10351462670), (4, 5175731335), (5, 4140585068), (10, 2070292534), (20, 1035146267), (43, 481463380), (86, 240731690), (97, 213432220), (172, 120365845), (194, 106716110), (215, 96292676), (388, 53358055), (430, 48146338), (485, 42686444), (860, 24073169), (970, 21343222), (1940, 10671611), (4171, 4963540), (8342, 2481770), (16684, 1240885), (20855, 992708), (41710, 496354), (83420, 248177)]