80735420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139199}}^1$

素因数の和:139237

約数の個数: 24

約数和(自身を含む): 175392000

約数和(自身を除く): 94656580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 139199, 278398, 556796, 695995, 1391990, 2783980, 4036771, 8073542, 16147084, 20183855, 40367710, 80735420]

約数ペア:

[(1, 80735420), (2, 40367710), (4, 20183855), (5, 16147084), (10, 8073542), (20, 4036771), (29, 2783980), (58, 1391990), (116, 695995), (145, 556796), (290, 278398), (580, 139199)]