2558380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{401}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 6078240

約数和(自身を除く): 3519860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 401, 580, 638, 802, 1276, 1595, 1604, 2005, 3190, 4010, 4411, 6380, 8020, 8822, 11629, 17644, 22055, 23258, 44110, 46516, 58145, 88220, 116290, 127919, 232580, 255838, 511676, 639595, 1279190, 2558380]

約数ペア:

[(1, 2558380), (2, 1279190), (4, 639595), (5, 511676), (10, 255838), (11, 232580), (20, 127919), (22, 116290), (29, 88220), (44, 58145), (55, 46516), (58, 44110), (110, 23258), (116, 22055), (145, 17644), (220, 11629), (290, 8822), (319, 8020), (401, 6380), (580, 4411), (638, 4010), (802, 3190), (1276, 2005), (1595, 1604)]