81007810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{4483}}^1$

素因数の和:4642

約数の個数: 32

約数和(自身を含む): 158195520

約数和(自身を除く): 77187710

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139, 278, 695, 1390, 1807, 3614, 4483, 8966, 9035, 18070, 22415, 44830, 58279, 116558, 291395, 582790, 623137, 1246274, 3115685, 6231370, 8100781, 16201562, 40503905, 81007810]

約数ペア:

[(1, 81007810), (2, 40503905), (5, 16201562), (10, 8100781), (13, 6231370), (26, 3115685), (65, 1246274), (130, 623137), (139, 582790), (278, 291395), (695, 116558), (1390, 58279), (1807, 44830), (3614, 22415), (4483, 18070), (8966, 9035)]