189901010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{76883}}^1$

素因数の和:76922

約数の個数: 32

約数和(自身を含む): 387495360

約数和(自身を除く): 197594350

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 76883, 153766, 384415, 768830, 999479, 1460777, 1998958, 2921554, 4997395, 7303885, 9994790, 14607770, 18990101, 37980202, 94950505, 189901010]

約数ペア:

[(1, 189901010), (2, 94950505), (5, 37980202), (10, 18990101), (13, 14607770), (19, 9994790), (26, 7303885), (38, 4997395), (65, 2921554), (95, 1998958), (130, 1460777), (190, 999479), (247, 768830), (494, 384415), (1235, 153766), (2470, 76883)]