20177600

素因数分解:

$2^6\times 5^2\times {\mathrm{12611}}^1$

素因数の和:12633

約数の個数: 42

約数和(自身を含む): 49653444

約数和(自身を除く): 29475844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12611, 25222, 50444, 63055, 100888, 126110, 201776, 252220, 315275, 403552, 504440, 630550, 807104, 1008880, 1261100, 2017760, 2522200, 4035520, 5044400, 10088800, 20177600]

約数ペア:

[(1, 20177600), (2, 10088800), (4, 5044400), (5, 4035520), (8, 2522200), (10, 2017760), (16, 1261100), (20, 1008880), (25, 807104), (32, 630550), (40, 504440), (50, 403552), (64, 315275), (80, 252220), (100, 201776), (160, 126110), (200, 100888), (320, 63055), (400, 50444), (800, 25222), (1600, 12611)]