20616700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15859}}^1$

素因数の和:15886

約数の個数: 36

約数和(自身を含む): 48182680

約数和(自身を除く): 27565980

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15859, 31718, 63436, 79295, 158590, 206167, 317180, 396475, 412334, 792950, 824668, 1030835, 1585900, 2061670, 4123340, 5154175, 10308350, 20616700]

約数ペア:

[(1, 20616700), (2, 10308350), (4, 5154175), (5, 4123340), (10, 2061670), (13, 1585900), (20, 1030835), (25, 824668), (26, 792950), (50, 412334), (52, 396475), (65, 317180), (100, 206167), (130, 158590), (260, 79295), (325, 63436), (650, 31718), (1300, 15859)]