31780112

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:137

約数の個数: 120

約数和(自身を含む): 80601984

約数和(自身を除く): 48821872

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 46, 52, 56, 73, 91, 92, 104, 112, 146, 161, 169, 182, 184, 208, 292, 299, 322, 338, 364, 368, 511, 584, 598, 644, 676, 728, 949, 1022, 1168, 1183, 1196, 1288, 1352, 1456, 1679, 1898, 2044, 2093, 2366, 2392, 2576, 2704, 3358, 3796, 3887, 4088, 4186, 4732, 4784, 6643, 6716, 7592, 7774, 8176, 8372, 9464, 11753, 12337, 13286, 13432, 15184, 15548, 16744, 18928, 21827, 23506, 24674, 26572, 26864, 27209, 31096, 33488, 43654, 47012, 49348, 53144, 54418, 62192, 86359, 87308, 94024, 98696, 106288, 108836, 152789, 172718, 174616, 188048, 197392, 217672, 283751, 305578, 345436, 349232, 435344, 567502, 611156, 690872, 1135004, 1222312, 1381744, 1986257, 2270008, 2444624, 3972514, 4540016, 7945028, 15890056, 31780112]

約数ペア:

[(1, 31780112), (2, 15890056), (4, 7945028), (7, 4540016), (8, 3972514), (13, 2444624), (14, 2270008), (16, 1986257), (23, 1381744), (26, 1222312), (28, 1135004), (46, 690872), (52, 611156), (56, 567502), (73, 435344), (91, 349232), (92, 345436), (104, 305578), (112, 283751), (146, 217672), (161, 197392), (169, 188048), (182, 174616), (184, 172718), (208, 152789), (292, 108836), (299, 106288), (322, 98696), (338, 94024), (364, 87308), (368, 86359), (511, 62192), (584, 54418), (598, 53144), (644, 49348), (676, 47012), (728, 43654), (949, 33488), (1022, 31096), (1168, 27209), (1183, 26864), (1196, 26572), (1288, 24674), (1352, 23506), (1456, 21827), (1679, 18928), (1898, 16744), (2044, 15548), (2093, 15184), (2366, 13432), (2392, 13286), (2576, 12337), (2704, 11753), (3358, 9464), (3796, 8372), (3887, 8176), (4088, 7774), (4186, 7592), (4732, 6716), (4784, 6643)]