28566620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{563}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 62536320

約数和(自身を除く): 33969700

約数列:

[1, 2, 4, 5, 10, 20, 43, 59, 86, 118, 172, 215, 236, 295, 430, 563, 590, 860, 1126, 1180, 2252, 2537, 2815, 5074, 5630, 10148, 11260, 12685, 24209, 25370, 33217, 48418, 50740, 66434, 96836, 121045, 132868, 166085, 242090, 332170, 484180, 664340, 1428331, 2856662, 5713324, 7141655, 14283310, 28566620]

約数ペア:

[(1, 28566620), (2, 14283310), (4, 7141655), (5, 5713324), (10, 2856662), (20, 1428331), (43, 664340), (59, 484180), (86, 332170), (118, 242090), (172, 166085), (215, 132868), (236, 121045), (295, 96836), (430, 66434), (563, 50740), (590, 48418), (860, 33217), (1126, 25370), (1180, 24209), (2252, 12685), (2537, 11260), (2815, 10148), (5074, 5630)]