66922820

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{21313}}^1$

素因数の和:21479

約数の個数: 24

約数和(自身を含む): 141439704

約数和(自身を除く): 74516884

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 21313, 42626, 85252, 106565, 213130, 426260, 3346141, 6692282, 13384564, 16730705, 33461410, 66922820]

約数ペア:

[(1, 66922820), (2, 33461410), (4, 16730705), (5, 13384564), (10, 6692282), (20, 3346141), (157, 426260), (314, 213130), (628, 106565), (785, 85252), (1570, 42626), (3140, 21313)]