20145250

素因数分解:

$2^1\times 5^3\times {\mathrm{61}}^1\times {\mathrm{1321}}^1$

素因数の和:1399

約数の個数: 32

約数和(自身を含む): 38359152

約数和(自身を除く): 18213902

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 125, 250, 305, 610, 1321, 1525, 2642, 3050, 6605, 7625, 13210, 15250, 33025, 66050, 80581, 161162, 165125, 330250, 402905, 805810, 2014525, 4029050, 10072625, 20145250]

約数ペア:

[(1, 20145250), (2, 10072625), (5, 4029050), (10, 2014525), (25, 805810), (50, 402905), (61, 330250), (122, 165125), (125, 161162), (250, 80581), (305, 66050), (610, 33025), (1321, 15250), (1525, 13210), (2642, 7625), (3050, 6605)]