18323680

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1613}}^1$

素因数の和:1699

約数の個数: 48

約数和(自身を含む): 43926624

約数和(自身を除く): 25602944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 1613, 2272, 2840, 3226, 5680, 6452, 8065, 11360, 12904, 16130, 25808, 32260, 51616, 64520, 114523, 129040, 229046, 258080, 458092, 572615, 916184, 1145230, 1832368, 2290460, 3664736, 4580920, 9161840, 18323680]

約数ペア:

[(1, 18323680), (2, 9161840), (4, 4580920), (5, 3664736), (8, 2290460), (10, 1832368), (16, 1145230), (20, 916184), (32, 572615), (40, 458092), (71, 258080), (80, 229046), (142, 129040), (160, 114523), (284, 64520), (355, 51616), (568, 32260), (710, 25808), (1136, 16130), (1420, 12904), (1613, 11360), (2272, 8065), (2840, 6452), (3226, 5680)]