987460

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:615

約数の個数: 24

約数和(自身を含む): 2099160

約数和(自身を除く): 1111700

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 509, 970, 1018, 1940, 2036, 2545, 5090, 10180, 49373, 98746, 197492, 246865, 493730, 987460]

約数ペア:

[(1, 987460), (2, 493730), (4, 246865), (5, 197492), (10, 98746), (20, 49373), (97, 10180), (194, 5090), (388, 2545), (485, 2036), (509, 1940), (970, 1018)]