31458160

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23131}}^1$

素因数の和:23161

約数の個数: 40

約数和(自身を含む): 77445936

約数和(自身を除く): 45987776

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 23131, 46262, 92524, 115655, 185048, 231310, 370096, 393227, 462620, 786454, 925240, 1572908, 1850480, 1966135, 3145816, 3932270, 6291632, 7864540, 15729080, 31458160]

約数ペア:

[(1, 31458160), (2, 15729080), (4, 7864540), (5, 6291632), (8, 3932270), (10, 3145816), (16, 1966135), (17, 1850480), (20, 1572908), (34, 925240), (40, 786454), (68, 462620), (80, 393227), (85, 370096), (136, 231310), (170, 185048), (272, 115655), (340, 92524), (680, 46262), (1360, 23131)]