19776860

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12517}}^1$

素因数の和:12605

約数の個数: 24

約数和(自身を含む): 42060480

約数和(自身を除く): 22283620

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 12517, 25034, 50068, 62585, 125170, 250340, 988843, 1977686, 3955372, 4944215, 9888430, 19776860]

約数ペア:

[(1, 19776860), (2, 9888430), (4, 4944215), (5, 3955372), (10, 1977686), (20, 988843), (79, 250340), (158, 125170), (316, 62585), (395, 50068), (790, 25034), (1580, 12517)]