20115390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2609}}^1$

素因数の和:2876

約数の個数: 32

約数和(自身を含む): 48483360

約数和(自身を除く): 28367970

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 257, 514, 771, 1285, 1542, 2570, 2609, 3855, 5218, 7710, 7827, 13045, 15654, 26090, 39135, 78270, 670513, 1341026, 2011539, 3352565, 4023078, 6705130, 10057695, 20115390]

約数ペア:

[(1, 20115390), (2, 10057695), (3, 6705130), (5, 4023078), (6, 3352565), (10, 2011539), (15, 1341026), (30, 670513), (257, 78270), (514, 39135), (771, 26090), (1285, 15654), (1542, 13045), (2570, 7827), (2609, 7710), (3855, 5218)]