80796560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77689}}^1$

素因数の和:77715

約数の個数: 40

約数和(自身を含む): 202304760

約数和(自身を除く): 121508200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 77689, 155378, 310756, 388445, 621512, 776890, 1009957, 1243024, 1553780, 2019914, 3107560, 4039828, 5049785, 6215120, 8079656, 10099570, 16159312, 20199140, 40398280, 80796560]

約数ペア:

[(1, 80796560), (2, 40398280), (4, 20199140), (5, 16159312), (8, 10099570), (10, 8079656), (13, 6215120), (16, 5049785), (20, 4039828), (26, 3107560), (40, 2019914), (52, 1553780), (65, 1243024), (80, 1009957), (104, 776890), (130, 621512), (208, 388445), (260, 310756), (520, 155378), (1040, 77689)]