20073825

素因数分解:

$3^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:476

約数の個数: 60

約数和(自身を含む): 38890368

約数和(自身を除く): 18816543

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 81, 115, 135, 207, 225, 345, 405, 431, 575, 621, 675, 1035, 1293, 1725, 1863, 2025, 2155, 3105, 3879, 5175, 6465, 9315, 9913, 10775, 11637, 15525, 19395, 29739, 32325, 34911, 46575, 49565, 58185, 89217, 96975, 148695, 174555, 247825, 267651, 290925, 446085, 743475, 802953, 872775, 1338255, 2230425, 4014765, 6691275, 20073825]

約数ペア:

[(1, 20073825), (3, 6691275), (5, 4014765), (9, 2230425), (15, 1338255), (23, 872775), (25, 802953), (27, 743475), (45, 446085), (69, 290925), (75, 267651), (81, 247825), (115, 174555), (135, 148695), (207, 96975), (225, 89217), (345, 58185), (405, 49565), (431, 46575), (575, 34911), (621, 32325), (675, 29739), (1035, 19395), (1293, 15525), (1725, 11637), (1863, 10775), (2025, 9913), (2155, 9315), (3105, 6465), (3879, 5175)]