2012129720

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{488381}}^1$

素因数の和:488495

約数の個数: 32

約数和(自身を含む): 4571255520

約数和(自身を除く): 2559125800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 488381, 976762, 1953524, 2441905, 3907048, 4883810, 9767620, 19535240, 50303243, 100606486, 201212972, 251516215, 402425944, 503032430, 1006064860, 2012129720]

約数ペア:

[(1, 2012129720), (2, 1006064860), (4, 503032430), (5, 402425944), (8, 251516215), (10, 201212972), (20, 100606486), (40, 50303243), (103, 19535240), (206, 9767620), (412, 4883810), (515, 3907048), (824, 2441905), (1030, 1953524), (2060, 976762), (4120, 488381)]