71985820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211723}}^1$

素因数の和:211749

約数の個数: 24

約数和(自身を含む): 160063344

約数和(自身を除く): 88077524

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 211723, 423446, 846892, 1058615, 2117230, 3599291, 4234460, 7198582, 14397164, 17996455, 35992910, 71985820]

約数ペア:

[(1, 71985820), (2, 35992910), (4, 17996455), (5, 14397164), (10, 7198582), (17, 4234460), (20, 3599291), (34, 2117230), (68, 1058615), (85, 846892), (170, 423446), (340, 211723)]