20185875

素因数分解:

$3^3\times 5^3\times {\mathrm{5981}}^1$

素因数の和:6005

約数の個数: 32

約数和(自身を含む): 37327680

約数和(自身を除く): 17141805

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 675, 1125, 3375, 5981, 17943, 29905, 53829, 89715, 149525, 161487, 269145, 448575, 747625, 807435, 1345725, 2242875, 4037175, 6728625, 20185875]

約数ペア:

[(1, 20185875), (3, 6728625), (5, 4037175), (9, 2242875), (15, 1345725), (25, 807435), (27, 747625), (45, 448575), (75, 269145), (125, 161487), (135, 149525), (225, 89715), (375, 53829), (675, 29905), (1125, 17943), (3375, 5981)]