18900345

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 15936135

約数列:

[1, 3, 5, 15, 17, 19, 47, 51, 57, 83, 85, 95, 141, 235, 249, 255, 285, 323, 415, 705, 799, 893, 969, 1245, 1411, 1577, 1615, 2397, 2679, 3901, 3995, 4233, 4465, 4731, 4845, 7055, 7885, 11703, 11985, 13395, 15181, 19505, 21165, 23655, 26809, 45543, 58515, 66317, 74119, 75905, 80427, 134045, 198951, 222357, 227715, 331585, 370595, 402135, 994755, 1111785, 1260023, 3780069, 6300115, 18900345]

約数ペア:

[(1, 18900345), (3, 6300115), (5, 3780069), (15, 1260023), (17, 1111785), (19, 994755), (47, 402135), (51, 370595), (57, 331585), (83, 227715), (85, 222357), (95, 198951), (141, 134045), (235, 80427), (249, 75905), (255, 74119), (285, 66317), (323, 58515), (415, 45543), (705, 26809), (799, 23655), (893, 21165), (969, 19505), (1245, 15181), (1411, 13395), (1577, 11985), (1615, 11703), (2397, 7885), (2679, 7055), (3901, 4845), (3995, 4731), (4233, 4465)]