2905000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{83}}^1$

素因数の和:116

約数の個数: 80

約数和(自身を含む): 7872480

約数和(自身を除く): 4967480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 83, 100, 125, 140, 166, 175, 200, 250, 280, 332, 350, 415, 500, 581, 625, 664, 700, 830, 875, 1000, 1162, 1250, 1400, 1660, 1750, 2075, 2324, 2500, 2905, 3320, 3500, 4150, 4375, 4648, 5000, 5810, 7000, 8300, 8750, 10375, 11620, 14525, 16600, 17500, 20750, 23240, 29050, 35000, 41500, 51875, 58100, 72625, 83000, 103750, 116200, 145250, 207500, 290500, 363125, 415000, 581000, 726250, 1452500, 2905000]

約数ペア:

[(1, 2905000), (2, 1452500), (4, 726250), (5, 581000), (7, 415000), (8, 363125), (10, 290500), (14, 207500), (20, 145250), (25, 116200), (28, 103750), (35, 83000), (40, 72625), (50, 58100), (56, 51875), (70, 41500), (83, 35000), (100, 29050), (125, 23240), (140, 20750), (166, 17500), (175, 16600), (200, 14525), (250, 11620), (280, 10375), (332, 8750), (350, 8300), (415, 7000), (500, 5810), (581, 5000), (625, 4648), (664, 4375), (700, 4150), (830, 3500), (875, 3320), (1000, 2905), (1162, 2500), (1250, 2324), (1400, 2075), (1660, 1750)]