71420000

素因数分解:

$2^5\times 5^4\times {\mathrm{3571}}^1$

素因数の和:3601

約数の個数: 60

約数和(自身を含む): 175753116

約数和(自身を除く): 104333116

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2500, 3571, 4000, 5000, 7142, 10000, 14284, 17855, 20000, 28568, 35710, 57136, 71420, 89275, 114272, 142840, 178550, 285680, 357100, 446375, 571360, 714200, 892750, 1428400, 1785500, 2231875, 2856800, 3571000, 4463750, 7142000, 8927500, 14284000, 17855000, 35710000, 71420000]

約数ペア:

[(1, 71420000), (2, 35710000), (4, 17855000), (5, 14284000), (8, 8927500), (10, 7142000), (16, 4463750), (20, 3571000), (25, 2856800), (32, 2231875), (40, 1785500), (50, 1428400), (80, 892750), (100, 714200), (125, 571360), (160, 446375), (200, 357100), (250, 285680), (400, 178550), (500, 142840), (625, 114272), (800, 89275), (1000, 71420), (1250, 57136), (2000, 35710), (2500, 28568), (3571, 20000), (4000, 17855), (5000, 14284), (7142, 10000)]