81235665

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{463}}^1\times {\mathrm{557}}^1$

素因数の和:1038

約数の個数: 48

約数和(自身を含む): 161561088

約数和(自身を除く): 80325423

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 463, 557, 1389, 1671, 2315, 2785, 3241, 3899, 4167, 5013, 6945, 8355, 9723, 11697, 16205, 19495, 20835, 25065, 29169, 35091, 48615, 58485, 145845, 175455, 257891, 773673, 1289455, 1805237, 2321019, 3868365, 5415711, 9026185, 11605095, 16247133, 27078555, 81235665]

約数ペア:

[(1, 81235665), (3, 27078555), (5, 16247133), (7, 11605095), (9, 9026185), (15, 5415711), (21, 3868365), (35, 2321019), (45, 1805237), (63, 1289455), (105, 773673), (315, 257891), (463, 175455), (557, 145845), (1389, 58485), (1671, 48615), (2315, 35091), (2785, 29169), (3241, 25065), (3899, 20835), (4167, 19495), (5013, 16205), (6945, 11697), (8355, 9723)]