18105220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1637}}^1$

素因数の和:1732

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 25924220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 1637, 2212, 2765, 3274, 5530, 6548, 8185, 11060, 11459, 16370, 22918, 32740, 45836, 57295, 114590, 129323, 229180, 258646, 517292, 646615, 905261, 1293230, 1810522, 2586460, 3621044, 4526305, 9052610, 18105220]

約数ペア:

[(1, 18105220), (2, 9052610), (4, 4526305), (5, 3621044), (7, 2586460), (10, 1810522), (14, 1293230), (20, 905261), (28, 646615), (35, 517292), (70, 258646), (79, 229180), (140, 129323), (158, 114590), (316, 57295), (395, 45836), (553, 32740), (790, 22918), (1106, 16370), (1580, 11459), (1637, 11060), (2212, 8185), (2765, 6548), (3274, 5530)]