1023820

素因数分解:

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

素因数の和:190

約数の個数: 48

約数和(自身を含む): 2515968

約数和(自身を除く): 1492148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 103, 140, 142, 206, 284, 355, 412, 497, 515, 710, 721, 994, 1030, 1420, 1442, 1988, 2060, 2485, 2884, 3605, 4970, 7210, 7313, 9940, 14420, 14626, 29252, 36565, 51191, 73130, 102382, 146260, 204764, 255955, 511910, 1023820]

約数ペア:

[(1, 1023820), (2, 511910), (4, 255955), (5, 204764), (7, 146260), (10, 102382), (14, 73130), (20, 51191), (28, 36565), (35, 29252), (70, 14626), (71, 14420), (103, 9940), (140, 7313), (142, 7210), (206, 4970), (284, 3605), (355, 2884), (412, 2485), (497, 2060), (515, 1988), (710, 1442), (721, 1420), (994, 1030)]