199906930

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1\times {\mathrm{1321}}^1$

素因数の和:1774

約数の個数: 32

約数和(自身を含む): 370741680

約数和(自身を除く): 170834750

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 409, 818, 1321, 2045, 2642, 4090, 6605, 13210, 15133, 30266, 48877, 75665, 97754, 151330, 244385, 488770, 540289, 1080578, 2701445, 5402890, 19990693, 39981386, 99953465, 199906930]

約数ペア:

[(1, 199906930), (2, 99953465), (5, 39981386), (10, 19990693), (37, 5402890), (74, 2701445), (185, 1080578), (370, 540289), (409, 488770), (818, 244385), (1321, 151330), (2045, 97754), (2642, 75665), (4090, 48877), (6605, 30266), (13210, 15133)]