289059620

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1\times {\mathrm{359}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 615444480

約数和(自身を除く): 326384860

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 317, 359, 508, 634, 635, 718, 1268, 1270, 1436, 1585, 1795, 2540, 3170, 3590, 6340, 7180, 40259, 45593, 80518, 91186, 113803, 161036, 182372, 201295, 227606, 227965, 402590, 455212, 455930, 569015, 805180, 911860, 1138030, 2276060, 14452981, 28905962, 57811924, 72264905, 144529810, 289059620]

約数ペア:

[(1, 289059620), (2, 144529810), (4, 72264905), (5, 57811924), (10, 28905962), (20, 14452981), (127, 2276060), (254, 1138030), (317, 911860), (359, 805180), (508, 569015), (634, 455930), (635, 455212), (718, 402590), (1268, 227965), (1270, 227606), (1436, 201295), (1585, 182372), (1795, 161036), (2540, 113803), (3170, 91186), (3590, 80518), (6340, 45593), (7180, 40259)]