201213620

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{72379}}^1$

素因数の和:72527

約数の個数: 24

約数和(自身を含む): 425594400

約数和(自身を除く): 224380780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 72379, 144758, 289516, 361895, 723790, 1447580, 10060681, 20121362, 40242724, 50303405, 100606810, 201213620]

約数ペア:

[(1, 201213620), (2, 100606810), (4, 50303405), (5, 40242724), (10, 20121362), (20, 10060681), (139, 1447580), (278, 723790), (556, 361895), (695, 289516), (1390, 144758), (2780, 72379)]