28655500

素因数分解:

$2^2\times 5^3\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:499

約数の個数: 48

約数和(自身を含む): 63108864

約数和(自身を除く): 34453364

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 223, 250, 257, 446, 500, 514, 892, 1028, 1115, 1285, 2230, 2570, 4460, 5140, 5575, 6425, 11150, 12850, 22300, 25700, 27875, 32125, 55750, 57311, 64250, 111500, 114622, 128500, 229244, 286555, 573110, 1146220, 1432775, 2865550, 5731100, 7163875, 14327750, 28655500]

約数ペア:

[(1, 28655500), (2, 14327750), (4, 7163875), (5, 5731100), (10, 2865550), (20, 1432775), (25, 1146220), (50, 573110), (100, 286555), (125, 229244), (223, 128500), (250, 114622), (257, 111500), (446, 64250), (500, 57311), (514, 55750), (892, 32125), (1028, 27875), (1115, 25700), (1285, 22300), (2230, 12850), (2570, 11150), (4460, 6425), (5140, 5575)]