397996945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{203579}}^1$

素因数の和:203624

約数の個数: 16

約数和(自身を含む): 527679360

約数和(自身を除く): 129682415

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 203579, 1017895, 3460843, 4682317, 17304215, 23411585, 79599389, 397996945]

約数ペア:

[(1, 397996945), (5, 79599389), (17, 23411585), (23, 17304215), (85, 4682317), (115, 3460843), (391, 1017895), (1955, 203579)]