28857720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2381}}^1$

素因数の和:2496

約数の個数: 64

約数和(自身を含む): 87467040

約数和(自身を除く): 58609320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 101, 120, 202, 303, 404, 505, 606, 808, 1010, 1212, 1515, 2020, 2381, 2424, 3030, 4040, 4762, 6060, 7143, 9524, 11905, 12120, 14286, 19048, 23810, 28572, 35715, 47620, 57144, 71430, 95240, 142860, 240481, 285720, 480962, 721443, 961924, 1202405, 1442886, 1923848, 2404810, 2885772, 3607215, 4809620, 5771544, 7214430, 9619240, 14428860, 28857720]

約数ペア:

[(1, 28857720), (2, 14428860), (3, 9619240), (4, 7214430), (5, 5771544), (6, 4809620), (8, 3607215), (10, 2885772), (12, 2404810), (15, 1923848), (20, 1442886), (24, 1202405), (30, 961924), (40, 721443), (60, 480962), (101, 285720), (120, 240481), (202, 142860), (303, 95240), (404, 71430), (505, 57144), (606, 47620), (808, 35715), (1010, 28572), (1212, 23810), (1515, 19048), (2020, 14286), (2381, 12120), (2424, 11905), (3030, 9524), (4040, 7143), (4762, 6060)]