124409980

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{15991}}^1$

素因数の和:16389

約数の個数: 24

約数和(自身を含む): 261948960

約数和(自身を除く): 137538980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 15991, 31982, 63964, 79955, 159910, 319820, 6220499, 12440998, 24881996, 31102495, 62204990, 124409980]

約数ペア:

[(1, 124409980), (2, 62204990), (4, 31102495), (5, 24881996), (10, 12440998), (20, 6220499), (389, 319820), (778, 159910), (1556, 79955), (1945, 63964), (3890, 31982), (7780, 15991)]