20739870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2917}}^1$

素因数の和:3009

約数の個数: 48

約数和(自身を含む): 54624960

約数和(自身を除く): 33885090

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 79, 90, 158, 237, 395, 474, 711, 790, 1185, 1422, 2370, 2917, 3555, 5834, 7110, 8751, 14585, 17502, 26253, 29170, 43755, 52506, 87510, 131265, 230443, 262530, 460886, 691329, 1152215, 1382658, 2073987, 2304430, 3456645, 4147974, 6913290, 10369935, 20739870]

約数ペア:

[(1, 20739870), (2, 10369935), (3, 6913290), (5, 4147974), (6, 3456645), (9, 2304430), (10, 2073987), (15, 1382658), (18, 1152215), (30, 691329), (45, 460886), (79, 262530), (90, 230443), (158, 131265), (237, 87510), (395, 52506), (474, 43755), (711, 29170), (790, 26253), (1185, 17502), (1422, 14585), (2370, 8751), (2917, 7110), (3555, 5834)]