17968820

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1613}}^1$

素因数の和:2179

約数の個数: 24

約数和(自身を含む): 37825704

約数和(自身を除く): 19856884

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 1613, 2228, 2785, 3226, 5570, 6452, 8065, 11140, 16130, 32260, 898441, 1796882, 3593764, 4492205, 8984410, 17968820]

約数ペア:

[(1, 17968820), (2, 8984410), (4, 4492205), (5, 3593764), (10, 1796882), (20, 898441), (557, 32260), (1114, 16130), (1613, 11140), (2228, 8065), (2785, 6452), (3226, 5570)]