198950680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{1123}}^1$

素因数の和:1280

約数の個数: 64

約数和(自身を含む): 462908160

約数和(自身を除く): 263957480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 103, 172, 206, 215, 344, 412, 430, 515, 824, 860, 1030, 1123, 1720, 2060, 2246, 4120, 4429, 4492, 5615, 8858, 8984, 11230, 17716, 22145, 22460, 35432, 44290, 44920, 48289, 88580, 96578, 115669, 177160, 193156, 231338, 241445, 386312, 462676, 482890, 578345, 925352, 965780, 1156690, 1931560, 2313380, 4626760, 4973767, 9947534, 19895068, 24868835, 39790136, 49737670, 99475340, 198950680]

約数ペア:

[(1, 198950680), (2, 99475340), (4, 49737670), (5, 39790136), (8, 24868835), (10, 19895068), (20, 9947534), (40, 4973767), (43, 4626760), (86, 2313380), (103, 1931560), (172, 1156690), (206, 965780), (215, 925352), (344, 578345), (412, 482890), (430, 462676), (515, 386312), (824, 241445), (860, 231338), (1030, 193156), (1123, 177160), (1720, 115669), (2060, 96578), (2246, 88580), (4120, 48289), (4429, 44920), (4492, 44290), (5615, 35432), (8858, 22460), (8984, 22145), (11230, 17716)]