201029980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{277}}^2$

素因数の和:694

約数の個数: 36

約数和(自身を含む): 426926808

約数和(自身を除く): 225896828

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 277, 524, 554, 655, 1108, 1310, 1385, 2620, 2770, 5540, 36287, 72574, 76729, 145148, 153458, 181435, 306916, 362870, 383645, 725740, 767290, 1534580, 10051499, 20102998, 40205996, 50257495, 100514990, 201029980]

約数ペア:

[(1, 201029980), (2, 100514990), (4, 50257495), (5, 40205996), (10, 20102998), (20, 10051499), (131, 1534580), (262, 767290), (277, 725740), (524, 383645), (554, 362870), (655, 306916), (1108, 181435), (1310, 153458), (1385, 145148), (2620, 76729), (2770, 72574), (5540, 36287)]