20346625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1$

素因数の和:706

約数の個数: 32

約数和(自身を含む): 28828800

約数和(自身を除く): 8482175

約数列:

[1, 5, 13, 19, 25, 65, 95, 125, 247, 325, 475, 659, 1235, 1625, 2375, 3295, 6175, 8567, 12521, 16475, 30875, 42835, 62605, 82375, 162773, 214175, 313025, 813865, 1070875, 1565125, 4069325, 20346625]

約数ペア:

[(1, 20346625), (5, 4069325), (13, 1565125), (19, 1070875), (25, 813865), (65, 313025), (95, 214175), (125, 162773), (247, 82375), (325, 62605), (475, 42835), (659, 30875), (1235, 16475), (1625, 12521), (2375, 8567), (3295, 6175)]