321920

素因数分解:

$2^7\times 5^1\times {\mathrm{503}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 771120

約数和(自身を除く): 449200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 503, 640, 1006, 2012, 2515, 4024, 5030, 8048, 10060, 16096, 20120, 32192, 40240, 64384, 80480, 160960, 321920]

約数ペア:

[(1, 321920), (2, 160960), (4, 80480), (5, 64384), (8, 40240), (10, 32192), (16, 20120), (20, 16096), (32, 10060), (40, 8048), (64, 5030), (80, 4024), (128, 2515), (160, 2012), (320, 1006), (503, 640)]