2912420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 7112448

約数和(自身を除く): 4200028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 293, 355, 497, 586, 710, 994, 1172, 1420, 1465, 1988, 2051, 2485, 2930, 4102, 4970, 5860, 8204, 9940, 10255, 20510, 20803, 41020, 41606, 83212, 104015, 145621, 208030, 291242, 416060, 582484, 728105, 1456210, 2912420]

約数ペア:

[(1, 2912420), (2, 1456210), (4, 728105), (5, 582484), (7, 416060), (10, 291242), (14, 208030), (20, 145621), (28, 104015), (35, 83212), (70, 41606), (71, 41020), (140, 20803), (142, 20510), (284, 10255), (293, 9940), (355, 8204), (497, 5860), (586, 4970), (710, 4102), (994, 2930), (1172, 2485), (1420, 2051), (1465, 1988)]