4392740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 10329984

約数和(自身を除く): 5937244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 487, 820, 902, 974, 1804, 1948, 2255, 2435, 4510, 4870, 5357, 9020, 9740, 10714, 19967, 21428, 26785, 39934, 53570, 79868, 99835, 107140, 199670, 219637, 399340, 439274, 878548, 1098185, 2196370, 4392740]

約数ペア:

[(1, 4392740), (2, 2196370), (4, 1098185), (5, 878548), (10, 439274), (11, 399340), (20, 219637), (22, 199670), (41, 107140), (44, 99835), (55, 79868), (82, 53570), (110, 39934), (164, 26785), (205, 21428), (220, 19967), (410, 10714), (451, 9740), (487, 9020), (820, 5357), (902, 4870), (974, 4510), (1804, 2435), (1948, 2255)]