40905680

素因数分解:

$2^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1613}}^1$

素因数の和:1943

約数の個数: 40

約数和(自身を含む): 95464872

約数和(自身を除く): 54559192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317, 634, 1268, 1585, 1613, 2536, 3170, 3226, 5072, 6340, 6452, 8065, 12680, 12904, 16130, 25360, 25808, 32260, 64520, 129040, 511321, 1022642, 2045284, 2556605, 4090568, 5113210, 8181136, 10226420, 20452840, 40905680]

約数ペア:

[(1, 40905680), (2, 20452840), (4, 10226420), (5, 8181136), (8, 5113210), (10, 4090568), (16, 2556605), (20, 2045284), (40, 1022642), (80, 511321), (317, 129040), (634, 64520), (1268, 32260), (1585, 25808), (1613, 25360), (2536, 16130), (3170, 12904), (3226, 12680), (5072, 8065), (6340, 6452)]