78953660

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{691}}^1$

素因数の和:926

約数の個数: 48

約数和(自身を含む): 172640160

約数和(自身を除く): 93686500

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 197, 290, 394, 580, 691, 788, 985, 1382, 1970, 2764, 3455, 3940, 5713, 6910, 11426, 13820, 20039, 22852, 28565, 40078, 57130, 80156, 100195, 114260, 136127, 200390, 272254, 400780, 544508, 680635, 1361270, 2722540, 3947683, 7895366, 15790732, 19738415, 39476830, 78953660]

約数ペア:

[(1, 78953660), (2, 39476830), (4, 19738415), (5, 15790732), (10, 7895366), (20, 3947683), (29, 2722540), (58, 1361270), (116, 680635), (145, 544508), (197, 400780), (290, 272254), (394, 200390), (580, 136127), (691, 114260), (788, 100195), (985, 80156), (1382, 57130), (1970, 40078), (2764, 28565), (3455, 22852), (3940, 20039), (5713, 13820), (6910, 11426)]