25432820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{467}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 61326720

約数和(自身を除く): 35893900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 467, 778, 934, 1556, 1868, 1945, 2335, 2723, 3269, 3890, 4670, 5446, 6538, 7780, 9340, 10892, 13076, 13615, 16345, 27230, 32690, 54460, 65380, 181663, 363326, 726652, 908315, 1271641, 1816630, 2543282, 3633260, 5086564, 6358205, 12716410, 25432820]

約数ペア:

[(1, 25432820), (2, 12716410), (4, 6358205), (5, 5086564), (7, 3633260), (10, 2543282), (14, 1816630), (20, 1271641), (28, 908315), (35, 726652), (70, 363326), (140, 181663), (389, 65380), (467, 54460), (778, 32690), (934, 27230), (1556, 16345), (1868, 13615), (1945, 13076), (2335, 10892), (2723, 9340), (3269, 7780), (3890, 6538), (4670, 5446)]