77811640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67079}}^1$

素因数の和:67119

約数の個数: 32

約数和(自身を含む): 181116000

約数和(自身を除く): 103304360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 67079, 134158, 268316, 335395, 536632, 670790, 1341580, 1945291, 2683160, 3890582, 7781164, 9726455, 15562328, 19452910, 38905820, 77811640]

約数ペア:

[(1, 77811640), (2, 38905820), (4, 19452910), (5, 15562328), (8, 9726455), (10, 7781164), (20, 3890582), (29, 2683160), (40, 1945291), (58, 1341580), (116, 670790), (145, 536632), (232, 335395), (290, 268316), (580, 134158), (1160, 67079)]