1809400

素因数分解:

$2^3\times 5^2\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 4296600

約数和(自身を除く): 2487200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 83, 100, 109, 166, 200, 218, 332, 415, 436, 545, 664, 830, 872, 1090, 1660, 2075, 2180, 2725, 3320, 4150, 4360, 5450, 8300, 9047, 10900, 16600, 18094, 21800, 36188, 45235, 72376, 90470, 180940, 226175, 361880, 452350, 904700, 1809400]

約数ペア:

[(1, 1809400), (2, 904700), (4, 452350), (5, 361880), (8, 226175), (10, 180940), (20, 90470), (25, 72376), (40, 45235), (50, 36188), (83, 21800), (100, 18094), (109, 16600), (166, 10900), (200, 9047), (218, 8300), (332, 5450), (415, 4360), (436, 4150), (545, 3320), (664, 2725), (830, 2180), (872, 2075), (1090, 1660)]