28257340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1307}}^1$

素因数の和:1386

約数の個数: 48

約数和(自身を含む): 63286272

約数和(自身を除く): 35028932

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 940, 1081, 1307, 2162, 2614, 4324, 5228, 5405, 6535, 10810, 13070, 21620, 26140, 30061, 60122, 61429, 120244, 122858, 150305, 245716, 300610, 307145, 601220, 614290, 1228580, 1412867, 2825734, 5651468, 7064335, 14128670, 28257340]

約数ペア:

[(1, 28257340), (2, 14128670), (4, 7064335), (5, 5651468), (10, 2825734), (20, 1412867), (23, 1228580), (46, 614290), (47, 601220), (92, 307145), (94, 300610), (115, 245716), (188, 150305), (230, 122858), (235, 120244), (460, 61429), (470, 60122), (940, 30061), (1081, 26140), (1307, 21620), (2162, 13070), (2614, 10810), (4324, 6535), (5228, 5405)]