80710400

素因数分解:

$2^8\times 5^2\times {\mathrm{12611}}^1$

素因数の和:12637

約数の個数: 54

約数和(自身を含む): 199786692

約数和(自身を除く): 119076292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3200, 6400, 12611, 25222, 50444, 63055, 100888, 126110, 201776, 252220, 315275, 403552, 504440, 630550, 807104, 1008880, 1261100, 1614208, 2017760, 2522200, 3228416, 4035520, 5044400, 8071040, 10088800, 16142080, 20177600, 40355200, 80710400]

約数ペア:

[(1, 80710400), (2, 40355200), (4, 20177600), (5, 16142080), (8, 10088800), (10, 8071040), (16, 5044400), (20, 4035520), (25, 3228416), (32, 2522200), (40, 2017760), (50, 1614208), (64, 1261100), (80, 1008880), (100, 807104), (128, 630550), (160, 504440), (200, 403552), (256, 315275), (320, 252220), (400, 201776), (640, 126110), (800, 100888), (1280, 63055), (1600, 50444), (3200, 25222), (6400, 12611)]