56921895

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1279}}^1$

素因数の和:1356

約数の個数: 48

約数和(自身を含む): 105431040

約数和(自身を除く): 48509145

約数列:

[1, 3, 5, 9, 15, 23, 43, 45, 69, 115, 129, 207, 215, 345, 387, 645, 989, 1035, 1279, 1935, 2967, 3837, 4945, 6395, 8901, 11511, 14835, 19185, 29417, 44505, 54997, 57555, 88251, 147085, 164991, 264753, 274985, 441255, 494973, 824955, 1264931, 1323765, 2474865, 3794793, 6324655, 11384379, 18973965, 56921895]

約数ペア:

[(1, 56921895), (3, 18973965), (5, 11384379), (9, 6324655), (15, 3794793), (23, 2474865), (43, 1323765), (45, 1264931), (69, 824955), (115, 494973), (129, 441255), (207, 274985), (215, 264753), (345, 164991), (387, 147085), (645, 88251), (989, 57555), (1035, 54997), (1279, 44505), (1935, 29417), (2967, 19185), (3837, 14835), (4945, 11511), (6395, 8901)]