647495980

素因数分解:

$2^2\times 5^1\times {\mathrm{2311}}^1\times {\mathrm{14009}}^1$

素因数の和:16329

約数の個数: 24

約数和(自身を含む): 1360427040

約数和(自身を除く): 712931060

約数列:

[1, 2, 4, 5, 10, 20, 2311, 4622, 9244, 11555, 14009, 23110, 28018, 46220, 56036, 70045, 140090, 280180, 32374799, 64749598, 129499196, 161873995, 323747990, 647495980]

約数ペア:

[(1, 647495980), (2, 323747990), (4, 161873995), (5, 129499196), (10, 64749598), (20, 32374799), (2311, 280180), (4622, 140090), (9244, 70045), (11555, 56036), (14009, 46220), (23110, 28018)]