28779950

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 55777680

約数和(自身を除く): 26997730

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 101, 139, 202, 205, 278, 410, 505, 695, 1010, 1025, 1390, 2050, 2525, 3475, 4141, 5050, 5699, 6950, 8282, 11398, 14039, 20705, 28078, 28495, 41410, 56990, 70195, 103525, 140390, 142475, 207050, 284950, 350975, 575599, 701950, 1151198, 2877995, 5755990, 14389975, 28779950]

約数ペア:

[(1, 28779950), (2, 14389975), (5, 5755990), (10, 2877995), (25, 1151198), (41, 701950), (50, 575599), (82, 350975), (101, 284950), (139, 207050), (202, 142475), (205, 140390), (278, 103525), (410, 70195), (505, 56990), (695, 41410), (1010, 28495), (1025, 28078), (1390, 20705), (2050, 14039), (2525, 11398), (3475, 8282), (4141, 6950), (5050, 5699)]