2890240

素因数分解:

$2^9\times 5^1\times {\mathrm{1129}}^1$

素因数の和:1152

約数の個数: 40

約数和(自身を含む): 6935940

約数和(自身を除く): 4045700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1129, 1280, 2258, 2560, 4516, 5645, 9032, 11290, 18064, 22580, 36128, 45160, 72256, 90320, 144512, 180640, 289024, 361280, 578048, 722560, 1445120, 2890240]

約数ペア:

[(1, 2890240), (2, 1445120), (4, 722560), (5, 578048), (8, 361280), (10, 289024), (16, 180640), (20, 144512), (32, 90320), (40, 72256), (64, 45160), (80, 36128), (128, 22580), (160, 18064), (256, 11290), (320, 9032), (512, 5645), (640, 4516), (1129, 2560), (1280, 2258)]