20000394

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:603

約数の個数: 48

約数和(自身を含む): 45437184

約数和(自身を除く): 25436790

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 73, 93, 146, 186, 219, 279, 438, 491, 558, 657, 982, 1314, 1473, 2263, 2946, 4419, 4526, 6789, 8838, 13578, 15221, 20367, 30442, 35843, 40734, 45663, 71686, 91326, 107529, 136989, 215058, 273978, 322587, 645174, 1111133, 2222266, 3333399, 6666798, 10000197, 20000394]

約数ペア:

[(1, 20000394), (2, 10000197), (3, 6666798), (6, 3333399), (9, 2222266), (18, 1111133), (31, 645174), (62, 322587), (73, 273978), (93, 215058), (146, 136989), (186, 107529), (219, 91326), (279, 71686), (438, 45663), (491, 40734), (558, 35843), (657, 30442), (982, 20367), (1314, 15221), (1473, 13578), (2263, 8838), (2946, 6789), (4419, 4526)]