256225920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{133451}}^1$

素因数の和:133473

約数の個数: 64

約数和(自身を含む): 816726240

約数和(自身を除く): 560500320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 133451, 266902, 400353, 533804, 667255, 800706, 1067608, 1334510, 1601412, 2001765, 2135216, 2669020, 3202824, 4003530, 4270432, 5338040, 6405648, 8007060, 8540864, 10676080, 12811296, 16014120, 17081728, 21352160, 25622592, 32028240, 42704320, 51245184, 64056480, 85408640, 128112960, 256225920]

約数ペア:

[(1, 256225920), (2, 128112960), (3, 85408640), (4, 64056480), (5, 51245184), (6, 42704320), (8, 32028240), (10, 25622592), (12, 21352160), (15, 17081728), (16, 16014120), (20, 12811296), (24, 10676080), (30, 8540864), (32, 8007060), (40, 6405648), (48, 5338040), (60, 4270432), (64, 4003530), (80, 3202824), (96, 2669020), (120, 2135216), (128, 2001765), (160, 1601412), (192, 1334510), (240, 1067608), (320, 800706), (384, 667255), (480, 533804), (640, 400353), (960, 266902), (1920, 133451)]