42881780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{35149}}^1$

素因数の和:35219

約数の個数: 24

約数和(自身を含む): 91530600

約数和(自身を除く): 48648820

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 35149, 70298, 140596, 175745, 351490, 702980, 2144089, 4288178, 8576356, 10720445, 21440890, 42881780]

約数ペア:

[(1, 42881780), (2, 21440890), (4, 10720445), (5, 8576356), (10, 4288178), (20, 2144089), (61, 702980), (122, 351490), (244, 175745), (305, 140596), (610, 70298), (1220, 35149)]