25437940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2689}}^1$

素因数の和:2752

約数の個数: 48

約数和(自身を含む): 59653440

約数和(自身を除く): 34215500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 2689, 4730, 5378, 9460, 10756, 13445, 26890, 29579, 53780, 59158, 115627, 118316, 147895, 231254, 295790, 462508, 578135, 591580, 1156270, 1271897, 2312540, 2543794, 5087588, 6359485, 12718970, 25437940]

約数ペア:

[(1, 25437940), (2, 12718970), (4, 6359485), (5, 5087588), (10, 2543794), (11, 2312540), (20, 1271897), (22, 1156270), (43, 591580), (44, 578135), (55, 462508), (86, 295790), (110, 231254), (172, 147895), (215, 118316), (220, 115627), (430, 59158), (473, 53780), (860, 29579), (946, 26890), (1892, 13445), (2365, 10756), (2689, 9460), (4730, 5378)]