30381988

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:257

約数の個数: 96

約数和(自身を含む): 72253440

約数和(自身を除く): 41871452

約数列:

[1, 2, 4, 7, 13, 14, 19, 23, 26, 28, 38, 46, 52, 76, 91, 92, 133, 161, 182, 191, 247, 266, 299, 322, 364, 382, 437, 494, 532, 598, 644, 764, 874, 988, 1196, 1337, 1729, 1748, 2093, 2483, 2674, 3059, 3458, 3629, 4186, 4393, 4966, 5348, 5681, 6118, 6916, 7258, 8372, 8786, 9932, 11362, 12236, 14516, 17381, 17572, 22724, 25403, 30751, 34762, 39767, 47177, 50806, 57109, 61502, 69524, 79534, 83467, 94354, 101612, 114218, 123004, 159068, 166934, 188708, 228436, 330239, 333868, 399763, 584269, 660478, 799526, 1085071, 1168538, 1320956, 1599052, 2170142, 2337076, 4340284, 7595497, 15190994, 30381988]

約数ペア:

[(1, 30381988), (2, 15190994), (4, 7595497), (7, 4340284), (13, 2337076), (14, 2170142), (19, 1599052), (23, 1320956), (26, 1168538), (28, 1085071), (38, 799526), (46, 660478), (52, 584269), (76, 399763), (91, 333868), (92, 330239), (133, 228436), (161, 188708), (182, 166934), (191, 159068), (247, 123004), (266, 114218), (299, 101612), (322, 94354), (364, 83467), (382, 79534), (437, 69524), (494, 61502), (532, 57109), (598, 50806), (644, 47177), (764, 39767), (874, 34762), (988, 30751), (1196, 25403), (1337, 22724), (1729, 17572), (1748, 17381), (2093, 14516), (2483, 12236), (2674, 11362), (3059, 9932), (3458, 8786), (3629, 8372), (4186, 7258), (4393, 6916), (4966, 6118), (5348, 5681)]