20040580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3329}}^1$

素因数の和:3388

約数の個数: 48

約数和(自身を含む): 49230720

約数和(自身を除く): 29190140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 3329, 6020, 6658, 13316, 16645, 23303, 33290, 46606, 66580, 93212, 116515, 143147, 233030, 286294, 466060, 572588, 715735, 1002029, 1431470, 2004058, 2862940, 4008116, 5010145, 10020290, 20040580]

約数ペア:

[(1, 20040580), (2, 10020290), (4, 5010145), (5, 4008116), (7, 2862940), (10, 2004058), (14, 1431470), (20, 1002029), (28, 715735), (35, 572588), (43, 466060), (70, 286294), (86, 233030), (140, 143147), (172, 116515), (215, 93212), (301, 66580), (430, 46606), (602, 33290), (860, 23303), (1204, 16645), (1505, 13316), (3010, 6658), (3329, 6020)]