81902345

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{769}}^1$

素因数の和:977

約数の個数: 32

約数和(自身を含む): 119750400

約数和(自身を除く): 37848055

約数列:

[1, 5, 7, 17, 35, 85, 119, 179, 595, 769, 895, 1253, 3043, 3845, 5383, 6265, 13073, 15215, 21301, 26915, 65365, 91511, 106505, 137651, 457555, 688255, 963557, 2340067, 4817785, 11700335, 16380469, 81902345]

約数ペア:

[(1, 81902345), (5, 16380469), (7, 11700335), (17, 4817785), (35, 2340067), (85, 963557), (119, 688255), (179, 457555), (595, 137651), (769, 106505), (895, 91511), (1253, 65365), (3043, 26915), (3845, 21301), (5383, 15215), (6265, 13073)]