1660000

素因数分解:

$2^5\times 5^4\times {\mathrm{83}}^1$

素因数の和:113

約数の個数: 60

約数和(自身を含む): 4133052

約数和(自身を除く): 2473052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 83, 100, 125, 160, 166, 200, 250, 332, 400, 415, 500, 625, 664, 800, 830, 1000, 1250, 1328, 1660, 2000, 2075, 2500, 2656, 3320, 4000, 4150, 5000, 6640, 8300, 10000, 10375, 13280, 16600, 20000, 20750, 33200, 41500, 51875, 66400, 83000, 103750, 166000, 207500, 332000, 415000, 830000, 1660000]

約数ペア:

[(1, 1660000), (2, 830000), (4, 415000), (5, 332000), (8, 207500), (10, 166000), (16, 103750), (20, 83000), (25, 66400), (32, 51875), (40, 41500), (50, 33200), (80, 20750), (83, 20000), (100, 16600), (125, 13280), (160, 10375), (166, 10000), (200, 8300), (250, 6640), (332, 5000), (400, 4150), (415, 4000), (500, 3320), (625, 2656), (664, 2500), (800, 2075), (830, 2000), (1000, 1660), (1250, 1328)]