4430000

素因数分解:

$2^4\times 5^4\times {\mathrm{443}}^1$

素因数の和:471

約数の個数: 50

約数和(自身を含む): 10749684

約数和(自身を除く): 6319684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 443, 500, 625, 886, 1000, 1250, 1772, 2000, 2215, 2500, 3544, 4430, 5000, 7088, 8860, 10000, 11075, 17720, 22150, 35440, 44300, 55375, 88600, 110750, 177200, 221500, 276875, 443000, 553750, 886000, 1107500, 2215000, 4430000]

約数ペア:

[(1, 4430000), (2, 2215000), (4, 1107500), (5, 886000), (8, 553750), (10, 443000), (16, 276875), (20, 221500), (25, 177200), (40, 110750), (50, 88600), (80, 55375), (100, 44300), (125, 35440), (200, 22150), (250, 17720), (400, 11075), (443, 10000), (500, 8860), (625, 7088), (886, 5000), (1000, 4430), (1250, 3544), (1772, 2500), (2000, 2215)]