81621130

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1\times {\mathrm{383}}^1$

素因数の和:702

約数の個数: 32

約数和(自身を含む): 149465088

約数和(自身を除く): 67843958

約数列:

[1, 2, 5, 10, 101, 202, 211, 383, 422, 505, 766, 1010, 1055, 1915, 2110, 3830, 21311, 38683, 42622, 77366, 80813, 106555, 161626, 193415, 213110, 386830, 404065, 808130, 8162113, 16324226, 40810565, 81621130]

約数ペア:

[(1, 81621130), (2, 40810565), (5, 16324226), (10, 8162113), (101, 808130), (202, 404065), (211, 386830), (383, 213110), (422, 193415), (505, 161626), (766, 106555), (1010, 80813), (1055, 77366), (1915, 42622), (2110, 38683), (3830, 21311)]