20052990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1231}}^1$

素因数の和:1425

約数の個数: 48

約数和(自身を含む): 52468416

約数和(自身を除く): 32415426

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 181, 362, 543, 905, 1086, 1231, 1629, 1810, 2462, 2715, 3258, 3693, 5430, 6155, 7386, 8145, 11079, 12310, 16290, 18465, 22158, 36930, 55395, 110790, 222811, 445622, 668433, 1114055, 1336866, 2005299, 2228110, 3342165, 4010598, 6684330, 10026495, 20052990]

約数ペア:

[(1, 20052990), (2, 10026495), (3, 6684330), (5, 4010598), (6, 3342165), (9, 2228110), (10, 2005299), (15, 1336866), (18, 1114055), (30, 668433), (45, 445622), (90, 222811), (181, 110790), (362, 55395), (543, 36930), (905, 22158), (1086, 18465), (1231, 16290), (1629, 12310), (1810, 11079), (2462, 8145), (2715, 7386), (3258, 6155), (3693, 5430)]