20170870

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{769}}^1$

素因数の和:880

約数の個数: 32

約数和(自身を含む): 37810080

約数和(自身を除く): 17639210

約数列:

[1, 2, 5, 10, 43, 61, 86, 122, 215, 305, 430, 610, 769, 1538, 2623, 3845, 5246, 7690, 13115, 26230, 33067, 46909, 66134, 93818, 165335, 234545, 330670, 469090, 2017087, 4034174, 10085435, 20170870]

約数ペア:

[(1, 20170870), (2, 10085435), (5, 4034174), (10, 2017087), (43, 469090), (61, 330670), (86, 234545), (122, 165335), (215, 93818), (305, 66134), (430, 46909), (610, 33067), (769, 26230), (1538, 13115), (2623, 7690), (3845, 5246)]