86972890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:495

約数の個数: 48

約数和(自身を含む): 168063336

約数和(自身を除く): 81090446

約数列:

[1, 2, 5, 10, 23, 41, 46, 82, 115, 205, 230, 401, 410, 529, 802, 943, 1058, 1886, 2005, 2645, 4010, 4715, 5290, 9223, 9430, 16441, 18446, 21689, 32882, 43378, 46115, 82205, 92230, 108445, 164410, 212129, 216890, 378143, 424258, 756286, 1060645, 1890715, 2121290, 3781430, 8697289, 17394578, 43486445, 86972890]

約数ペア:

[(1, 86972890), (2, 43486445), (5, 17394578), (10, 8697289), (23, 3781430), (41, 2121290), (46, 1890715), (82, 1060645), (115, 756286), (205, 424258), (230, 378143), (401, 216890), (410, 212129), (529, 164410), (802, 108445), (943, 92230), (1058, 82205), (1886, 46115), (2005, 43378), (2645, 32882), (4010, 21689), (4715, 18446), (5290, 16441), (9223, 9430)]