198915145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 294787584

約数和(自身を除く): 95872439

約数列:

[1, 5, 11, 13, 37, 55, 65, 73, 103, 143, 185, 365, 407, 481, 515, 715, 803, 949, 1133, 1339, 2035, 2405, 2701, 3811, 4015, 4745, 5291, 5665, 6695, 7519, 10439, 13505, 14729, 19055, 26455, 29711, 35113, 37595, 41921, 49543, 52195, 73645, 82709, 97747, 148555, 175565, 209605, 247715, 278203, 386243, 413545, 488735, 544973, 1075217, 1391015, 1931215, 2724865, 3060233, 3616639, 5376085, 15301165, 18083195, 39783029, 198915145]

約数ペア:

[(1, 198915145), (5, 39783029), (11, 18083195), (13, 15301165), (37, 5376085), (55, 3616639), (65, 3060233), (73, 2724865), (103, 1931215), (143, 1391015), (185, 1075217), (365, 544973), (407, 488735), (481, 413545), (515, 386243), (715, 278203), (803, 247715), (949, 209605), (1133, 175565), (1339, 148555), (2035, 97747), (2405, 82709), (2701, 73645), (3811, 52195), (4015, 49543), (4745, 41921), (5291, 37595), (5665, 35113), (6695, 29711), (7519, 26455), (10439, 19055), (13505, 14729)]