198553660

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1\times {\mathrm{337}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 424176480

約数和(自身を除く): 225622820

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 331, 337, 356, 445, 662, 674, 890, 1324, 1348, 1655, 1685, 1780, 3310, 3370, 6620, 6740, 29459, 29993, 58918, 59986, 111547, 117836, 119972, 147295, 149965, 223094, 294590, 299930, 446188, 557735, 589180, 599860, 1115470, 2230940, 9927683, 19855366, 39710732, 49638415, 99276830, 198553660]

約数ペア:

[(1, 198553660), (2, 99276830), (4, 49638415), (5, 39710732), (10, 19855366), (20, 9927683), (89, 2230940), (178, 1115470), (331, 599860), (337, 589180), (356, 557735), (445, 446188), (662, 299930), (674, 294590), (890, 223094), (1324, 149965), (1348, 147295), (1655, 119972), (1685, 117836), (1780, 111547), (3310, 59986), (3370, 58918), (6620, 29993), (6740, 29459)]