42541990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{997}}^1$

素因数の和:1272

約数の個数: 32

約数和(自身を含む): 81484704

約数和(自身を除く): 38942714

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 251, 502, 997, 1255, 1994, 2510, 4267, 4985, 8534, 9970, 16949, 21335, 33898, 42670, 84745, 169490, 250247, 500494, 1251235, 2502470, 4254199, 8508398, 21270995, 42541990]

約数ペア:

[(1, 42541990), (2, 21270995), (5, 8508398), (10, 4254199), (17, 2502470), (34, 1251235), (85, 500494), (170, 250247), (251, 169490), (502, 84745), (997, 42670), (1255, 33898), (1994, 21335), (2510, 16949), (4267, 9970), (4985, 8534)]