20313880

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{3041}}^1$

素因数の和:3219

約数の個数: 32

約数和(自身を含む): 45995040

約数和(自身を除く): 25681160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 3041, 3340, 6082, 6680, 12164, 15205, 24328, 30410, 60820, 121640, 507847, 1015694, 2031388, 2539235, 4062776, 5078470, 10156940, 20313880]

約数ペア:

[(1, 20313880), (2, 10156940), (4, 5078470), (5, 4062776), (8, 2539235), (10, 2031388), (20, 1015694), (40, 507847), (167, 121640), (334, 60820), (668, 30410), (835, 24328), (1336, 15205), (1670, 12164), (3041, 6680), (3340, 6082)]