51396640

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2311}}^1$

素因数の和:2465

約数の個数: 48

約数和(自身を含む): 122351040

約数和(自身を除く): 70954400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1390, 2224, 2311, 2780, 4448, 4622, 5560, 9244, 11120, 11555, 18488, 22240, 23110, 36976, 46220, 73952, 92440, 184880, 321229, 369760, 642458, 1284916, 1606145, 2569832, 3212290, 5139664, 6424580, 10279328, 12849160, 25698320, 51396640]

約数ペア:

[(1, 51396640), (2, 25698320), (4, 12849160), (5, 10279328), (8, 6424580), (10, 5139664), (16, 3212290), (20, 2569832), (32, 1606145), (40, 1284916), (80, 642458), (139, 369760), (160, 321229), (278, 184880), (556, 92440), (695, 73952), (1112, 46220), (1390, 36976), (2224, 23110), (2311, 22240), (2780, 18488), (4448, 11555), (4622, 11120), (5560, 9244)]