201942820

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{881}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 433118448

約数和(自身を除く): 231175628

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 157, 292, 314, 365, 628, 730, 785, 881, 1460, 1570, 1762, 3140, 3524, 4405, 8810, 11461, 17620, 22922, 45844, 57305, 64313, 114610, 128626, 138317, 229220, 257252, 276634, 321565, 553268, 643130, 691585, 1286260, 1383170, 2766340, 10097141, 20194282, 40388564, 50485705, 100971410, 201942820]

約数ペア:

[(1, 201942820), (2, 100971410), (4, 50485705), (5, 40388564), (10, 20194282), (20, 10097141), (73, 2766340), (146, 1383170), (157, 1286260), (292, 691585), (314, 643130), (365, 553268), (628, 321565), (730, 276634), (785, 257252), (881, 229220), (1460, 138317), (1570, 128626), (1762, 114610), (3140, 64313), (3524, 57305), (4405, 45844), (8810, 22922), (11461, 17620)]