80776904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{40879}}^1$

素因数の和:40917

約数の個数: 32

約数和(自身を含む): 171696000

約数和(自身を除く): 90919096

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 40879, 81758, 163516, 327032, 531427, 776701, 1062854, 1553402, 2125708, 3106804, 4251416, 6213608, 10097113, 20194226, 40388452, 80776904]

約数ペア:

[(1, 80776904), (2, 40388452), (4, 20194226), (8, 10097113), (13, 6213608), (19, 4251416), (26, 3106804), (38, 2125708), (52, 1553402), (76, 1062854), (104, 776701), (152, 531427), (247, 327032), (494, 163516), (988, 81758), (1976, 40879)]