660688

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{347}}^1$

素因数の和:379

約数の個数: 40

約数和(自身を含む): 1553472

約数和(自身を除く): 892784

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 347, 476, 694, 952, 1388, 1904, 2429, 2776, 4858, 5552, 5899, 9716, 11798, 19432, 23596, 38864, 41293, 47192, 82586, 94384, 165172, 330344, 660688]

約数ペア:

[(1, 660688), (2, 330344), (4, 165172), (7, 94384), (8, 82586), (14, 47192), (16, 41293), (17, 38864), (28, 23596), (34, 19432), (56, 11798), (68, 9716), (112, 5899), (119, 5552), (136, 4858), (238, 2776), (272, 2429), (347, 1904), (476, 1388), (694, 952)]