201804140

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1\times {\mathrm{521}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 430938144

約数和(自身を除く): 229134004

約数列:

[1, 2, 4, 5, 10, 20, 107, 181, 214, 362, 428, 521, 535, 724, 905, 1042, 1070, 1810, 2084, 2140, 2605, 3620, 5210, 10420, 19367, 38734, 55747, 77468, 94301, 96835, 111494, 188602, 193670, 222988, 278735, 377204, 387340, 471505, 557470, 943010, 1114940, 1886020, 10090207, 20180414, 40360828, 50451035, 100902070, 201804140]

約数ペア:

[(1, 201804140), (2, 100902070), (4, 50451035), (5, 40360828), (10, 20180414), (20, 10090207), (107, 1886020), (181, 1114940), (214, 943010), (362, 557470), (428, 471505), (521, 387340), (535, 377204), (724, 278735), (905, 222988), (1042, 193670), (1070, 188602), (1810, 111494), (2084, 96835), (2140, 94301), (2605, 77468), (3620, 55747), (5210, 38734), (10420, 19367)]