8407040

素因数分解:

$2^{11}\times 5^1\times {\mathrm{821}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 20196540

約数和(自身を除く): 11789500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 821, 1024, 1280, 1642, 2048, 2560, 3284, 4105, 5120, 6568, 8210, 10240, 13136, 16420, 26272, 32840, 52544, 65680, 105088, 131360, 210176, 262720, 420352, 525440, 840704, 1050880, 1681408, 2101760, 4203520, 8407040]

約数ペア:

[(1, 8407040), (2, 4203520), (4, 2101760), (5, 1681408), (8, 1050880), (10, 840704), (16, 525440), (20, 420352), (32, 262720), (40, 210176), (64, 131360), (80, 105088), (128, 65680), (160, 52544), (256, 32840), (320, 26272), (512, 16420), (640, 13136), (821, 10240), (1024, 8210), (1280, 6568), (1642, 5120), (2048, 4105), (2560, 3284)]