20205060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1409}}^1$

素因数の和:1660

約数の個数: 48

約数和(自身を含む): 56851200

約数和(自身を除く): 36646140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 239, 478, 717, 956, 1195, 1409, 1434, 2390, 2818, 2868, 3585, 4227, 4780, 5636, 7045, 7170, 8454, 14090, 14340, 16908, 21135, 28180, 42270, 84540, 336751, 673502, 1010253, 1347004, 1683755, 2020506, 3367510, 4041012, 5051265, 6735020, 10102530, 20205060]

約数ペア:

[(1, 20205060), (2, 10102530), (3, 6735020), (4, 5051265), (5, 4041012), (6, 3367510), (10, 2020506), (12, 1683755), (15, 1347004), (20, 1010253), (30, 673502), (60, 336751), (239, 84540), (478, 42270), (717, 28180), (956, 21135), (1195, 16908), (1409, 14340), (1434, 14090), (2390, 8454), (2818, 7170), (2868, 7045), (3585, 5636), (4227, 4780)]