638014725

素因数分解:

$3^5\times 5^2\times {\mathrm{105023}}^1$

素因数の和:105048

約数の個数: 36

約数和(自身を含む): 1185090816

約数和(自身を除く): 547076091

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1215, 2025, 6075, 105023, 315069, 525115, 945207, 1575345, 2625575, 2835621, 4726035, 7876725, 8506863, 14178105, 23630175, 25520589, 42534315, 70890525, 127602945, 212671575, 638014725]

約数ペア:

[(1, 638014725), (3, 212671575), (5, 127602945), (9, 70890525), (15, 42534315), (25, 25520589), (27, 23630175), (45, 14178105), (75, 8506863), (81, 7876725), (135, 4726035), (225, 2835621), (243, 2625575), (405, 1575345), (675, 945207), (1215, 525115), (2025, 315069), (6075, 105023)]