51515900

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{6521}}^1$

素因数の和:6614

約数の個数: 36

約数和(自身を含む): 113221920

約数和(自身を除く): 61706020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1975, 3950, 6521, 7900, 13042, 26084, 32605, 65210, 130420, 163025, 326050, 515159, 652100, 1030318, 2060636, 2575795, 5151590, 10303180, 12878975, 25757950, 51515900]

約数ペア:

[(1, 51515900), (2, 25757950), (4, 12878975), (5, 10303180), (10, 5151590), (20, 2575795), (25, 2060636), (50, 1030318), (79, 652100), (100, 515159), (158, 326050), (316, 163025), (395, 130420), (790, 65210), (1580, 32605), (1975, 26084), (3950, 13042), (6521, 7900)]