161941220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{39887}}^1$

素因数の和:39932

約数の個数: 48

約数和(自身を含む): 402071040

約数和(自身を除く): 240129820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 39887, 79774, 159548, 199435, 279209, 398870, 558418, 797740, 1116836, 1156723, 1396045, 2313446, 2792090, 4626892, 5584180, 5783615, 8097061, 11567230, 16194122, 23134460, 32388244, 40485305, 80970610, 161941220]

約数ペア:

[(1, 161941220), (2, 80970610), (4, 40485305), (5, 32388244), (7, 23134460), (10, 16194122), (14, 11567230), (20, 8097061), (28, 5783615), (29, 5584180), (35, 4626892), (58, 2792090), (70, 2313446), (116, 1396045), (140, 1156723), (145, 1116836), (203, 797740), (290, 558418), (406, 398870), (580, 279209), (812, 199435), (1015, 159548), (2030, 79774), (4060, 39887)]