28901320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{443}}^1$

素因数の和:694

約数の個数: 64

約数和(自身を含む): 74805120

約数和(自身を除く): 45903800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 233, 280, 443, 466, 886, 932, 1165, 1631, 1772, 1864, 2215, 2330, 3101, 3262, 3544, 4430, 4660, 6202, 6524, 8155, 8860, 9320, 12404, 13048, 15505, 16310, 17720, 24808, 31010, 32620, 62020, 65240, 103219, 124040, 206438, 412876, 516095, 722533, 825752, 1032190, 1445066, 2064380, 2890132, 3612665, 4128760, 5780264, 7225330, 14450660, 28901320]

約数ペア:

[(1, 28901320), (2, 14450660), (4, 7225330), (5, 5780264), (7, 4128760), (8, 3612665), (10, 2890132), (14, 2064380), (20, 1445066), (28, 1032190), (35, 825752), (40, 722533), (56, 516095), (70, 412876), (140, 206438), (233, 124040), (280, 103219), (443, 65240), (466, 62020), (886, 32620), (932, 31010), (1165, 24808), (1631, 17720), (1772, 16310), (1864, 15505), (2215, 13048), (2330, 12404), (3101, 9320), (3262, 8860), (3544, 8155), (4430, 6524), (4660, 6202)]