25218380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1451}}^1$

素因数の和:1550

約数の個数: 48

約数和(自身を含む): 58544640

約数和(自身を除く): 33326260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1451, 1580, 1738, 2902, 3476, 4345, 5804, 7255, 8690, 14510, 15961, 17380, 29020, 31922, 63844, 79805, 114629, 159610, 229258, 319220, 458516, 573145, 1146290, 1260919, 2292580, 2521838, 5043676, 6304595, 12609190, 25218380]

約数ペア:

[(1, 25218380), (2, 12609190), (4, 6304595), (5, 5043676), (10, 2521838), (11, 2292580), (20, 1260919), (22, 1146290), (44, 573145), (55, 458516), (79, 319220), (110, 229258), (158, 159610), (220, 114629), (316, 79805), (395, 63844), (790, 31922), (869, 29020), (1451, 17380), (1580, 15961), (1738, 14510), (2902, 8690), (3476, 7255), (4345, 5804)]