2120320

素因数分解:

$2^7\times 5^1\times {\mathrm{3313}}^1$

素因数の和:3332

約数の個数: 32

約数和(自身を含む): 5070420

約数和(自身を除く): 2950100

約数列:

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

約数ペア:

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