81572880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{339887}}^1$

素因数の和:339903

約数の個数: 40

約数和(自身を含む): 252876672

約数和(自身を除く): 171303792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 339887, 679774, 1019661, 1359548, 1699435, 2039322, 2719096, 3398870, 4078644, 5098305, 5438192, 6797740, 8157288, 10196610, 13595480, 16314576, 20393220, 27190960, 40786440, 81572880]

約数ペア:

[(1, 81572880), (2, 40786440), (3, 27190960), (4, 20393220), (5, 16314576), (6, 13595480), (8, 10196610), (10, 8157288), (12, 6797740), (15, 5438192), (16, 5098305), (20, 4078644), (24, 3398870), (30, 2719096), (40, 2039322), (48, 1699435), (60, 1359548), (80, 1019661), (120, 679774), (240, 339887)]