143686780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1\times {\mathrm{431}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 307722240

約数和(自身を除く): 164035460

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 211, 316, 395, 422, 431, 790, 844, 862, 1055, 1580, 1724, 2110, 2155, 4220, 4310, 8620, 16669, 33338, 34049, 66676, 68098, 83345, 90941, 136196, 166690, 170245, 181882, 333380, 340490, 363764, 454705, 680980, 909410, 1818820, 7184339, 14368678, 28737356, 35921695, 71843390, 143686780]

約数ペア:

[(1, 143686780), (2, 71843390), (4, 35921695), (5, 28737356), (10, 14368678), (20, 7184339), (79, 1818820), (158, 909410), (211, 680980), (316, 454705), (395, 363764), (422, 340490), (431, 333380), (790, 181882), (844, 170245), (862, 166690), (1055, 136196), (1580, 90941), (1724, 83345), (2110, 68098), (2155, 66676), (4220, 34049), (4310, 33338), (8620, 16669)]