8645680

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1613}}^1$

素因数の和:1693

約数の個数: 40

約数和(自身を含む): 20413872

約数和(自身を除く): 11768192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 1613, 2680, 3226, 5360, 6452, 8065, 12904, 16130, 25808, 32260, 64520, 108071, 129040, 216142, 432284, 540355, 864568, 1080710, 1729136, 2161420, 4322840, 8645680]

約数ペア:

[(1, 8645680), (2, 4322840), (4, 2161420), (5, 1729136), (8, 1080710), (10, 864568), (16, 540355), (20, 432284), (40, 216142), (67, 129040), (80, 108071), (134, 64520), (268, 32260), (335, 25808), (536, 16130), (670, 12904), (1072, 8065), (1340, 6452), (1613, 5360), (2680, 3226)]