2101760

素因数分解:

$2^9\times 5^1\times {\mathrm{821}}^1$

素因数の和:844

約数の個数: 40

約数和(自身を含む): 5045436

約数和(自身を除く): 2943676

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 821, 1280, 1642, 2560, 3284, 4105, 6568, 8210, 13136, 16420, 26272, 32840, 52544, 65680, 105088, 131360, 210176, 262720, 420352, 525440, 1050880, 2101760]

約数ペア:

[(1, 2101760), (2, 1050880), (4, 525440), (5, 420352), (8, 262720), (10, 210176), (16, 131360), (20, 105088), (32, 65680), (40, 52544), (64, 32840), (80, 26272), (128, 16420), (160, 13136), (256, 8210), (320, 6568), (512, 4105), (640, 3284), (821, 2560), (1280, 1642)]