16907990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 35707392

約数和(自身を除く): 18799402

約数列:

[1, 2, 5, 10, 11, 22, 23, 41, 46, 55, 82, 110, 115, 163, 205, 230, 253, 326, 410, 451, 506, 815, 902, 943, 1265, 1630, 1793, 1886, 2255, 2530, 3586, 3749, 4510, 4715, 6683, 7498, 8965, 9430, 10373, 13366, 17930, 18745, 20746, 33415, 37490, 41239, 51865, 66830, 73513, 82478, 103730, 147026, 153709, 206195, 307418, 367565, 412390, 735130, 768545, 1537090, 1690799, 3381598, 8453995, 16907990]

約数ペア:

[(1, 16907990), (2, 8453995), (5, 3381598), (10, 1690799), (11, 1537090), (22, 768545), (23, 735130), (41, 412390), (46, 367565), (55, 307418), (82, 206195), (110, 153709), (115, 147026), (163, 103730), (205, 82478), (230, 73513), (253, 66830), (326, 51865), (410, 41239), (451, 37490), (506, 33415), (815, 20746), (902, 18745), (943, 17930), (1265, 13366), (1630, 10373), (1793, 9430), (1886, 8965), (2255, 7498), (2530, 6683), (3586, 4715), (3749, 4510)]