1445120

素因数分解:

$2^8\times 5^1\times {\mathrm{1129}}^1$

素因数の和:1150

約数の個数: 36

約数和(自身を含む): 3464580

約数和(自身を除く): 2019460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1129, 1280, 2258, 4516, 5645, 9032, 11290, 18064, 22580, 36128, 45160, 72256, 90320, 144512, 180640, 289024, 361280, 722560, 1445120]

約数ペア:

[(1, 1445120), (2, 722560), (4, 361280), (5, 289024), (8, 180640), (10, 144512), (16, 90320), (20, 72256), (32, 45160), (40, 36128), (64, 22580), (80, 18064), (128, 11290), (160, 9032), (256, 5645), (320, 4516), (640, 2258), (1129, 1280)]