427060

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 909216

約数和(自身を除く): 482156

約数列:

[1, 2, 4, 5, 10, 20, 131, 163, 262, 326, 524, 652, 655, 815, 1310, 1630, 2620, 3260, 21353, 42706, 85412, 106765, 213530, 427060]

約数ペア:

[(1, 427060), (2, 213530), (4, 106765), (5, 85412), (10, 42706), (20, 21353), (131, 3260), (163, 2620), (262, 1630), (326, 1310), (524, 815), (652, 655)]