202145420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{571}}^2$

素因数の和:1182

約数の個数: 36

約数和(自身を含む): 438967872

約数和(自身を除く): 236822452

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 571, 620, 1142, 2284, 2855, 5710, 11420, 17701, 35402, 70804, 88505, 177010, 326041, 354020, 652082, 1304164, 1630205, 3260410, 6520820, 10107271, 20214542, 40429084, 50536355, 101072710, 202145420]

約数ペア:

[(1, 202145420), (2, 101072710), (4, 50536355), (5, 40429084), (10, 20214542), (20, 10107271), (31, 6520820), (62, 3260410), (124, 1630205), (155, 1304164), (310, 652082), (571, 354020), (620, 326041), (1142, 177010), (2284, 88505), (2855, 70804), (5710, 35402), (11420, 17701)]