127483820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1\times {\mathrm{547}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 275455488

約数和(自身を除く): 147971668

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 271, 430, 542, 547, 860, 1084, 1094, 1355, 2188, 2710, 2735, 5420, 5470, 10940, 11653, 23306, 23521, 46612, 47042, 58265, 94084, 116530, 117605, 148237, 233060, 235210, 296474, 470420, 592948, 741185, 1482370, 2964740, 6374191, 12748382, 25496764, 31870955, 63741910, 127483820]

約数ペア:

[(1, 127483820), (2, 63741910), (4, 31870955), (5, 25496764), (10, 12748382), (20, 6374191), (43, 2964740), (86, 1482370), (172, 741185), (215, 592948), (271, 470420), (430, 296474), (542, 235210), (547, 233060), (860, 148237), (1084, 117605), (1094, 116530), (1355, 94084), (2188, 58265), (2710, 47042), (2735, 46612), (5420, 23521), (5470, 23306), (10940, 11653)]