665584

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{2447}}^1$

素因数の和:2472

約数の個数: 20

約数和(自身を含む): 1365984

約数和(自身を除く): 700400

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 2447, 4894, 9788, 19576, 39152, 41599, 83198, 166396, 332792, 665584]

約数ペア:

[(1, 665584), (2, 332792), (4, 166396), (8, 83198), (16, 41599), (17, 39152), (34, 19576), (68, 9788), (136, 4894), (272, 2447)]