20549590

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{439}}^1$

素因数の和:628

約数の個数: 32

約数和(自身を含む): 38522880

約数和(自身を除く): 17973290

約数列:

[1, 2, 5, 10, 31, 62, 151, 155, 302, 310, 439, 755, 878, 1510, 2195, 4390, 4681, 9362, 13609, 23405, 27218, 46810, 66289, 68045, 132578, 136090, 331445, 662890, 2054959, 4109918, 10274795, 20549590]

約数ペア:

[(1, 20549590), (2, 10274795), (5, 4109918), (10, 2054959), (31, 662890), (62, 331445), (151, 136090), (155, 132578), (302, 68045), (310, 66289), (439, 46810), (755, 27218), (878, 23405), (1510, 13609), (2195, 9362), (4390, 4681)]