109978520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{1487}}^1$

素因数の和:1584

約数の個数: 48

約数和(自身を含む): 253510560

約数和(自身を除く): 143532040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1487, 1720, 1849, 2974, 3698, 5948, 7396, 7435, 9245, 11896, 14792, 14870, 18490, 29740, 36980, 59480, 63941, 73960, 127882, 255764, 319705, 511528, 639410, 1278820, 2557640, 2749463, 5498926, 10997852, 13747315, 21995704, 27494630, 54989260, 109978520]

約数ペア:

[(1, 109978520), (2, 54989260), (4, 27494630), (5, 21995704), (8, 13747315), (10, 10997852), (20, 5498926), (40, 2749463), (43, 2557640), (86, 1278820), (172, 639410), (215, 511528), (344, 319705), (430, 255764), (860, 127882), (1487, 73960), (1720, 63941), (1849, 59480), (2974, 36980), (3698, 29740), (5948, 18490), (7396, 14870), (7435, 14792), (9245, 11896)]