4247780

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1303}}^1$

素因数の和:1475

約数の個数: 24

約数和(自身を含む): 8981952

約数和(自身を除く): 4734172

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1303, 1630, 2606, 3260, 5212, 6515, 13030, 26060, 212389, 424778, 849556, 1061945, 2123890, 4247780]

約数ペア:

[(1, 4247780), (2, 2123890), (4, 1061945), (5, 849556), (10, 424778), (20, 212389), (163, 26060), (326, 13030), (652, 6515), (815, 5212), (1303, 3260), (1630, 2606)]