278442500

素因数分解:

$2^2\times 5^4\times 7^2\times {\mathrm{2273}}^1$

素因数の和:2311

約数の個数: 90

約数和(自身を含む): 708621606

約数和(自身を除く): 430179106

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 245, 250, 350, 490, 500, 625, 700, 875, 980, 1225, 1250, 1750, 2273, 2450, 2500, 3500, 4375, 4546, 4900, 6125, 8750, 9092, 11365, 12250, 15911, 17500, 22730, 24500, 30625, 31822, 45460, 56825, 61250, 63644, 79555, 111377, 113650, 122500, 159110, 222754, 227300, 284125, 318220, 397775, 445508, 556885, 568250, 795550, 1113770, 1136500, 1420625, 1591100, 1988875, 2227540, 2784425, 2841250, 3977750, 5568850, 5682500, 7955500, 9944375, 11137700, 13922125, 19888750, 27844250, 39777500, 55688500, 69610625, 139221250, 278442500]

約数ペア:

[(1, 278442500), (2, 139221250), (4, 69610625), (5, 55688500), (7, 39777500), (10, 27844250), (14, 19888750), (20, 13922125), (25, 11137700), (28, 9944375), (35, 7955500), (49, 5682500), (50, 5568850), (70, 3977750), (98, 2841250), (100, 2784425), (125, 2227540), (140, 1988875), (175, 1591100), (196, 1420625), (245, 1136500), (250, 1113770), (350, 795550), (490, 568250), (500, 556885), (625, 445508), (700, 397775), (875, 318220), (980, 284125), (1225, 227300), (1250, 222754), (1750, 159110), (2273, 122500), (2450, 113650), (2500, 111377), (3500, 79555), (4375, 63644), (4546, 61250), (4900, 56825), (6125, 45460), (8750, 31822), (9092, 30625), (11365, 24500), (12250, 22730), (15911, 17500)]