81626000

素因数分解:

$2^4\times 5^3\times {\mathrm{40813}}^1$

素因数の和:40836

約数の個数: 40

約数和(自身を含む): 197376504

約数和(自身を除く): 115750504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 40813, 81626, 163252, 204065, 326504, 408130, 653008, 816260, 1020325, 1632520, 2040650, 3265040, 4081300, 5101625, 8162600, 10203250, 16325200, 20406500, 40813000, 81626000]

約数ペア:

[(1, 81626000), (2, 40813000), (4, 20406500), (5, 16325200), (8, 10203250), (10, 8162600), (16, 5101625), (20, 4081300), (25, 3265040), (40, 2040650), (50, 1632520), (80, 1020325), (100, 816260), (125, 653008), (200, 408130), (250, 326504), (400, 204065), (500, 163252), (1000, 81626), (2000, 40813)]