12391640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18223}}^1$

素因数の和:18251

約数の個数: 32

約数和(自身を含む): 29522880

約数和(自身を除く): 17131240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 18223, 36446, 72892, 91115, 145784, 182230, 309791, 364460, 619582, 728920, 1239164, 1548955, 2478328, 3097910, 6195820, 12391640]

約数ペア:

[(1, 12391640), (2, 6195820), (4, 3097910), (5, 2478328), (8, 1548955), (10, 1239164), (17, 728920), (20, 619582), (34, 364460), (40, 309791), (68, 182230), (85, 145784), (136, 91115), (170, 72892), (340, 36446), (680, 18223)]