20084980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{929}}^1$

素因数の和:1008

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 24912140

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 929, 940, 1081, 1858, 2162, 3716, 4324, 4645, 5405, 9290, 10810, 18580, 21367, 21620, 42734, 43663, 85468, 87326, 106835, 174652, 213670, 218315, 427340, 436630, 873260, 1004249, 2008498, 4016996, 5021245, 10042490, 20084980]

約数ペア:

[(1, 20084980), (2, 10042490), (4, 5021245), (5, 4016996), (10, 2008498), (20, 1004249), (23, 873260), (46, 436630), (47, 427340), (92, 218315), (94, 213670), (115, 174652), (188, 106835), (230, 87326), (235, 85468), (460, 43663), (470, 42734), (929, 21620), (940, 21367), (1081, 18580), (1858, 10810), (2162, 9290), (3716, 5405), (4324, 4645)]