8720985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6389}}^1$

素因数の和:6417

約数の個数: 32

約数和(自身を含む): 17176320

約数和(自身を除く): 8455335

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 6389, 19167, 31945, 44723, 83057, 95835, 134169, 223615, 249171, 415285, 581399, 670845, 1245855, 1744197, 2906995, 8720985]

約数ペア:

[(1, 8720985), (3, 2906995), (5, 1744197), (7, 1245855), (13, 670845), (15, 581399), (21, 415285), (35, 249171), (39, 223615), (65, 134169), (91, 95835), (105, 83057), (195, 44723), (273, 31945), (455, 19167), (1365, 6389)]