20118375

素因数分解:

$3^4\times 5^3\times {\mathrm{1987}}^1$

素因数の和:2014

約数の個数: 40

約数和(自身を含む): 37525488

約数和(自身を除く): 17407113

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 375, 405, 675, 1125, 1987, 2025, 3375, 5961, 9935, 10125, 17883, 29805, 49675, 53649, 89415, 149025, 160947, 248375, 268245, 447075, 745125, 804735, 1341225, 2235375, 4023675, 6706125, 20118375]

約数ペア:

[(1, 20118375), (3, 6706125), (5, 4023675), (9, 2235375), (15, 1341225), (25, 804735), (27, 745125), (45, 447075), (75, 268245), (81, 248375), (125, 160947), (135, 149025), (225, 89415), (375, 53649), (405, 49675), (675, 29805), (1125, 17883), (1987, 10125), (2025, 9935), (3375, 5961)]