80499070

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{1997}}^1$

素因数の和:2172

約数の個数: 32

約数和(自身を含む): 151048800

約数和(自身を除く): 70549730

約数列:

[1, 2, 5, 10, 29, 58, 139, 145, 278, 290, 695, 1390, 1997, 3994, 4031, 8062, 9985, 19970, 20155, 40310, 57913, 115826, 277583, 289565, 555166, 579130, 1387915, 2775830, 8049907, 16099814, 40249535, 80499070]

約数ペア:

[(1, 80499070), (2, 40249535), (5, 16099814), (10, 8049907), (29, 2775830), (58, 1387915), (139, 579130), (145, 555166), (278, 289565), (290, 277583), (695, 115826), (1390, 57913), (1997, 40310), (3994, 20155), (4031, 19970), (8062, 9985)]