2047640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 5391360

約数和(自身を除く): 3343720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 103, 140, 142, 206, 280, 284, 355, 412, 497, 515, 568, 710, 721, 824, 994, 1030, 1420, 1442, 1988, 2060, 2485, 2840, 2884, 3605, 3976, 4120, 4970, 5768, 7210, 7313, 9940, 14420, 14626, 19880, 28840, 29252, 36565, 51191, 58504, 73130, 102382, 146260, 204764, 255955, 292520, 409528, 511910, 1023820, 2047640]

約数ペア:

[(1, 2047640), (2, 1023820), (4, 511910), (5, 409528), (7, 292520), (8, 255955), (10, 204764), (14, 146260), (20, 102382), (28, 73130), (35, 58504), (40, 51191), (56, 36565), (70, 29252), (71, 28840), (103, 19880), (140, 14626), (142, 14420), (206, 9940), (280, 7313), (284, 7210), (355, 5768), (412, 4970), (497, 4120), (515, 3976), (568, 3605), (710, 2884), (721, 2840), (824, 2485), (994, 2060), (1030, 1988), (1420, 1442)]