201002390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{157}}^1\times {\mathrm{443}}^1$

素因数の和:641

約数の個数: 48

約数和(自身を含む): 387659952

約数和(自身を除く): 186657562

約数列:

[1, 2, 5, 10, 17, 34, 85, 157, 170, 289, 314, 443, 578, 785, 886, 1445, 1570, 2215, 2669, 2890, 4430, 5338, 7531, 13345, 15062, 26690, 37655, 45373, 69551, 75310, 90746, 128027, 139102, 226865, 256054, 347755, 453730, 640135, 695510, 1182367, 1280270, 2364734, 5911835, 11823670, 20100239, 40200478, 100501195, 201002390]

約数ペア:

[(1, 201002390), (2, 100501195), (5, 40200478), (10, 20100239), (17, 11823670), (34, 5911835), (85, 2364734), (157, 1280270), (170, 1182367), (289, 695510), (314, 640135), (443, 453730), (578, 347755), (785, 256054), (886, 226865), (1445, 139102), (1570, 128027), (2215, 90746), (2669, 75310), (2890, 69551), (4430, 45373), (5338, 37655), (7531, 26690), (13345, 15062)]