390804964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{67801}}^1$

素因数の和:67947

約数の個数: 24

約数和(自身を含む): 751788576

約数和(自身を除く): 360983612

約数列:

[1, 2, 4, 11, 22, 44, 131, 262, 524, 1441, 2882, 5764, 67801, 135602, 271204, 745811, 1491622, 2983244, 8881931, 17763862, 35527724, 97701241, 195402482, 390804964]

約数ペア:

[(1, 390804964), (2, 195402482), (4, 97701241), (11, 35527724), (22, 17763862), (44, 8881931), (131, 2983244), (262, 1491622), (524, 745811), (1441, 271204), (2882, 135602), (5764, 67801)]