257480880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1072837}}^1$

素因数の和:1072853

約数の個数: 40

約数和(自身を含む): 798191472

約数和(自身を除く): 540710592

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1072837, 2145674, 3218511, 4291348, 5364185, 6437022, 8582696, 10728370, 12874044, 16092555, 17165392, 21456740, 25748088, 32185110, 42913480, 51496176, 64370220, 85826960, 128740440, 257480880]

約数ペア:

[(1, 257480880), (2, 128740440), (3, 85826960), (4, 64370220), (5, 51496176), (6, 42913480), (8, 32185110), (10, 25748088), (12, 21456740), (15, 17165392), (16, 16092555), (20, 12874044), (24, 10728370), (30, 8582696), (40, 6437022), (48, 5364185), (60, 4291348), (80, 3218511), (120, 2145674), (240, 1072837)]