987788115

素因数分解:

$3^4\times 5^1\times {\mathrm{1283}}^1\times {\mathrm{1901}}^1$

素因数の和:3201

約数の個数: 40

約数和(自身を含む): 1773013968

約数和(自身を除く): 785225853

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1283, 1901, 3849, 5703, 6415, 9505, 11547, 17109, 19245, 28515, 34641, 51327, 57735, 85545, 103923, 153981, 173205, 256635, 519615, 769905, 2438983, 7316949, 12194915, 21950847, 36584745, 65852541, 109754235, 197557623, 329262705, 987788115]

約数ペア:

[(1, 987788115), (3, 329262705), (5, 197557623), (9, 109754235), (15, 65852541), (27, 36584745), (45, 21950847), (81, 12194915), (135, 7316949), (405, 2438983), (1283, 769905), (1901, 519615), (3849, 256635), (5703, 173205), (6415, 153981), (9505, 103923), (11547, 85545), (17109, 57735), (19245, 51327), (28515, 34641)]