681278668

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{12433}}^1$

素因数の和:12566

約数の個数: 48

約数和(自身を含む): 1448312320

約数和(自身を除く): 767033652

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 103, 133, 206, 266, 412, 532, 721, 1442, 1957, 2884, 3914, 7828, 12433, 13699, 24866, 27398, 49732, 54796, 87031, 174062, 236227, 348124, 472454, 944908, 1280599, 1653589, 2561198, 3307178, 5122396, 6614356, 8964193, 17928386, 24331381, 35856772, 48662762, 97325524, 170319667, 340639334, 681278668]

約数ペア:

[(1, 681278668), (2, 340639334), (4, 170319667), (7, 97325524), (14, 48662762), (19, 35856772), (28, 24331381), (38, 17928386), (76, 8964193), (103, 6614356), (133, 5122396), (206, 3307178), (266, 2561198), (412, 1653589), (532, 1280599), (721, 944908), (1442, 472454), (1957, 348124), (2884, 236227), (3914, 174062), (7828, 87031), (12433, 54796), (13699, 49732), (24866, 27398)]