201561880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{887}}^1$

素因数の和:953

約数の個数: 128

約数和(自身を含む): 537062400

約数和(自身を除く): 335500520

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 23, 26, 38, 40, 46, 52, 65, 76, 92, 95, 104, 115, 130, 152, 184, 190, 230, 247, 260, 299, 380, 437, 460, 494, 520, 598, 760, 874, 887, 920, 988, 1196, 1235, 1495, 1748, 1774, 1976, 2185, 2392, 2470, 2990, 3496, 3548, 4370, 4435, 4940, 5681, 5980, 7096, 8740, 8870, 9880, 11362, 11531, 11960, 16853, 17480, 17740, 20401, 22724, 23062, 28405, 33706, 35480, 40802, 45448, 46124, 56810, 57655, 67412, 81604, 84265, 92248, 102005, 113620, 115310, 134824, 163208, 168530, 204010, 219089, 227240, 230620, 265213, 337060, 387619, 408020, 438178, 461240, 530426, 674120, 775238, 816040, 876356, 1060852, 1095445, 1326065, 1550476, 1752712, 1938095, 2121704, 2190890, 2652130, 3100952, 3876190, 4381780, 5039047, 5304260, 7752380, 8763560, 10078094, 10608520, 15504760, 20156188, 25195235, 40312376, 50390470, 100780940, 201561880]

約数ペア:

[(1, 201561880), (2, 100780940), (4, 50390470), (5, 40312376), (8, 25195235), (10, 20156188), (13, 15504760), (19, 10608520), (20, 10078094), (23, 8763560), (26, 7752380), (38, 5304260), (40, 5039047), (46, 4381780), (52, 3876190), (65, 3100952), (76, 2652130), (92, 2190890), (95, 2121704), (104, 1938095), (115, 1752712), (130, 1550476), (152, 1326065), (184, 1095445), (190, 1060852), (230, 876356), (247, 816040), (260, 775238), (299, 674120), (380, 530426), (437, 461240), (460, 438178), (494, 408020), (520, 387619), (598, 337060), (760, 265213), (874, 230620), (887, 227240), (920, 219089), (988, 204010), (1196, 168530), (1235, 163208), (1495, 134824), (1748, 115310), (1774, 113620), (1976, 102005), (2185, 92248), (2392, 84265), (2470, 81604), (2990, 67412), (3496, 57655), (3548, 56810), (4370, 46124), (4435, 45448), (4940, 40802), (5681, 35480), (5980, 33706), (7096, 28405), (8740, 23062), (8870, 22724), (9880, 20401), (11362, 17740), (11531, 17480), (11960, 16853)]