20031800

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{2707}}^1$

素因数の和:2760

約数の個数: 48

約数和(自身を含む): 47850360

約数和(自身を除く): 27818560

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 148, 185, 200, 296, 370, 740, 925, 1480, 1850, 2707, 3700, 5414, 7400, 10828, 13535, 21656, 27070, 54140, 67675, 100159, 108280, 135350, 200318, 270700, 400636, 500795, 541400, 801272, 1001590, 2003180, 2503975, 4006360, 5007950, 10015900, 20031800]

約数ペア:

[(1, 20031800), (2, 10015900), (4, 5007950), (5, 4006360), (8, 2503975), (10, 2003180), (20, 1001590), (25, 801272), (37, 541400), (40, 500795), (50, 400636), (74, 270700), (100, 200318), (148, 135350), (185, 108280), (200, 100159), (296, 67675), (370, 54140), (740, 27070), (925, 21656), (1480, 13535), (1850, 10828), (2707, 7400), (3700, 5414)]