19875700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15289}}^1$

素因数の和:15316

約数の個数: 36

約数和(自身を含む): 46451020

約数和(自身を除く): 26575320

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15289, 30578, 61156, 76445, 152890, 198757, 305780, 382225, 397514, 764450, 795028, 993785, 1528900, 1987570, 3975140, 4968925, 9937850, 19875700]

約数ペア:

[(1, 19875700), (2, 9937850), (4, 4968925), (5, 3975140), (10, 1987570), (13, 1528900), (20, 993785), (25, 795028), (26, 764450), (50, 397514), (52, 382225), (65, 305780), (100, 198757), (130, 152890), (260, 76445), (325, 61156), (650, 30578), (1300, 15289)]