77881240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67139}}^1$

素因数の和:67179

約数の個数: 32

約数和(自身を含む): 181278000

約数和(自身を除く): 103396760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 67139, 134278, 268556, 335695, 537112, 671390, 1342780, 1947031, 2685560, 3894062, 7788124, 9735155, 15576248, 19470310, 38940620, 77881240]

約数ペア:

[(1, 77881240), (2, 38940620), (4, 19470310), (5, 15576248), (8, 9735155), (10, 7788124), (20, 3894062), (29, 2685560), (40, 1947031), (58, 1342780), (116, 671390), (145, 537112), (232, 335695), (290, 268556), (580, 134278), (1160, 67139)]