40521340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{65357}}^1$

素因数の和:65397

約数の個数: 24

約数和(自身を含む): 87841152

約数和(自身を除く): 47319812

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 65357, 130714, 261428, 326785, 653570, 1307140, 2026067, 4052134, 8104268, 10130335, 20260670, 40521340]

約数ペア:

[(1, 40521340), (2, 20260670), (4, 10130335), (5, 8104268), (10, 4052134), (20, 2026067), (31, 1307140), (62, 653570), (124, 326785), (155, 261428), (310, 130714), (620, 65357)]