19515220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9661}}^1$

素因数の和:9771

約数の個数: 24

約数和(自身を含む): 41392008

約数和(自身を除く): 21876788

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 9661, 19322, 38644, 48305, 96610, 193220, 975761, 1951522, 3903044, 4878805, 9757610, 19515220]

約数ペア:

[(1, 19515220), (2, 9757610), (4, 4878805), (5, 3903044), (10, 1951522), (20, 975761), (101, 193220), (202, 96610), (404, 48305), (505, 38644), (1010, 19322), (2020, 9661)]