90207880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{322171}}^1$

素因数の和:322189

約数の個数: 32

約数和(自身を含む): 231963840

約数和(自身を除く): 141755960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 322171, 644342, 1288684, 1610855, 2255197, 2577368, 3221710, 4510394, 6443420, 9020788, 11275985, 12886840, 18041576, 22551970, 45103940, 90207880]

約数ペア:

[(1, 90207880), (2, 45103940), (4, 22551970), (5, 18041576), (7, 12886840), (8, 11275985), (10, 9020788), (14, 6443420), (20, 4510394), (28, 3221710), (35, 2577368), (40, 2255197), (56, 1610855), (70, 1288684), (140, 644342), (280, 322171)]