4446440

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1249}}^1$

素因数の和:1349

約数の個数: 32

約数和(自身を含む): 10125000

約数和(自身を除く): 5678560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1249, 1780, 2498, 3560, 4996, 6245, 9992, 12490, 24980, 49960, 111161, 222322, 444644, 555805, 889288, 1111610, 2223220, 4446440]

約数ペア:

[(1, 4446440), (2, 2223220), (4, 1111610), (5, 889288), (8, 555805), (10, 444644), (20, 222322), (40, 111161), (89, 49960), (178, 24980), (356, 12490), (445, 9992), (712, 6245), (890, 4996), (1249, 3560), (1780, 2498)]