68864420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{613}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 149467248

約数和(自身を除く): 80602828

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 137, 164, 205, 274, 410, 548, 613, 685, 820, 1226, 1370, 2452, 2740, 3065, 5617, 6130, 11234, 12260, 22468, 25133, 28085, 50266, 56170, 83981, 100532, 112340, 125665, 167962, 251330, 335924, 419905, 502660, 839810, 1679620, 3443221, 6886442, 13772884, 17216105, 34432210, 68864420]

約数ペア:

[(1, 68864420), (2, 34432210), (4, 17216105), (5, 13772884), (10, 6886442), (20, 3443221), (41, 1679620), (82, 839810), (137, 502660), (164, 419905), (205, 335924), (274, 251330), (410, 167962), (548, 125665), (613, 112340), (685, 100532), (820, 83981), (1226, 56170), (1370, 50266), (2452, 28085), (2740, 25133), (3065, 22468), (5617, 12260), (6130, 11234)]