2814440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1073

約数の個数: 32

約数和(自身を含む): 6428160

約数和(自身を除く): 3613720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 991, 1420, 1982, 2840, 3964, 4955, 7928, 9910, 19820, 39640, 70361, 140722, 281444, 351805, 562888, 703610, 1407220, 2814440]

約数ペア:

[(1, 2814440), (2, 1407220), (4, 703610), (5, 562888), (8, 351805), (10, 281444), (20, 140722), (40, 70361), (71, 39640), (142, 19820), (284, 9910), (355, 7928), (568, 4955), (710, 3964), (991, 2840), (1420, 1982)]