259435640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{381523}}^1$

素因数の和:381551

約数の個数: 32

約数和(自身を含む): 618068880

約数和(自身を除く): 358633240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 381523, 763046, 1526092, 1907615, 3052184, 3815230, 6485891, 7630460, 12971782, 15260920, 25943564, 32429455, 51887128, 64858910, 129717820, 259435640]

約数ペア:

[(1, 259435640), (2, 129717820), (4, 64858910), (5, 51887128), (8, 32429455), (10, 25943564), (17, 15260920), (20, 12971782), (34, 7630460), (40, 6485891), (68, 3815230), (85, 3052184), (136, 1907615), (170, 1526092), (340, 763046), (680, 381523)]