4240640

素因数分解:

$2^8\times 5^1\times {\mathrm{3313}}^1$

素因数の和:3334

約数の個数: 36

約数和(自身を含む): 10160724

約数和(自身を除く): 5920084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 3313, 6626, 13252, 16565, 26504, 33130, 53008, 66260, 106016, 132520, 212032, 265040, 424064, 530080, 848128, 1060160, 2120320, 4240640]

約数ペア:

[(1, 4240640), (2, 2120320), (4, 1060160), (5, 848128), (8, 530080), (10, 424064), (16, 265040), (20, 212032), (32, 132520), (40, 106016), (64, 66260), (80, 53008), (128, 33130), (160, 26504), (256, 16565), (320, 13252), (640, 6626), (1280, 3313)]