77776840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67049}}^1$

素因数の和:67089

約数の個数: 32

約数和(自身を含む): 181035000

約数和(自身を除く): 103258160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 67049, 134098, 268196, 335245, 536392, 670490, 1340980, 1944421, 2681960, 3888842, 7777684, 9722105, 15555368, 19444210, 38888420, 77776840]

約数ペア:

[(1, 77776840), (2, 38888420), (4, 19444210), (5, 15555368), (8, 9722105), (10, 7777684), (20, 3888842), (29, 2681960), (40, 1944421), (58, 1340980), (116, 670490), (145, 536392), (232, 335245), (290, 268196), (580, 134098), (1160, 67049)]