16878040

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3221}}^1$

素因数の和:3363

約数の個数: 32

約数和(自身を含む): 38277360

約数和(自身を除く): 21399320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 3221, 5240, 6442, 12884, 16105, 25768, 32210, 64420, 128840, 421951, 843902, 1687804, 2109755, 3375608, 4219510, 8439020, 16878040]

約数ペア:

[(1, 16878040), (2, 8439020), (4, 4219510), (5, 3375608), (8, 2109755), (10, 1687804), (20, 843902), (40, 421951), (131, 128840), (262, 64420), (524, 32210), (655, 25768), (1048, 16105), (1310, 12884), (2620, 6442), (3221, 5240)]