207901640

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{31123}}^1$

素因数の和:31301

約数の個数: 32

約数和(自身を含む): 470594880

約数和(自身を除く): 262693240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 3340, 6680, 31123, 62246, 124492, 155615, 248984, 311230, 622460, 1244920, 5197541, 10395082, 20790164, 25987705, 41580328, 51975410, 103950820, 207901640]

約数ペア:

[(1, 207901640), (2, 103950820), (4, 51975410), (5, 41580328), (8, 25987705), (10, 20790164), (20, 10395082), (40, 5197541), (167, 1244920), (334, 622460), (668, 311230), (835, 248984), (1336, 155615), (1670, 124492), (3340, 62246), (6680, 31123)]