20081115

素因数分解:

$3^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{277}}^1$

素因数の和:473

約数の個数: 40

約数和(自身を含む): 36329040

約数和(自身を除く): 16247925

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 179, 277, 405, 537, 831, 895, 1385, 1611, 2493, 2685, 4155, 4833, 7479, 8055, 12465, 14499, 22437, 24165, 37395, 49583, 72495, 112185, 148749, 247915, 446247, 743745, 1338741, 2231235, 4016223, 6693705, 20081115]

約数ペア:

[(1, 20081115), (3, 6693705), (5, 4016223), (9, 2231235), (15, 1338741), (27, 743745), (45, 446247), (81, 247915), (135, 148749), (179, 112185), (277, 72495), (405, 49583), (537, 37395), (831, 24165), (895, 22437), (1385, 14499), (1611, 12465), (2493, 8055), (2685, 7479), (4155, 4833)]