80079440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4931}}^1$

素因数の和:4980

約数の個数: 80

約数和(自身を含む): 220164480

約数和(自身を除く): 140085040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1624, 2030, 2320, 3248, 4060, 4931, 8120, 9862, 16240, 19724, 24655, 34517, 39448, 49310, 69034, 78896, 98620, 138068, 142999, 172585, 197240, 276136, 285998, 345170, 394480, 552272, 571996, 690340, 714995, 1000993, 1143992, 1380680, 1429990, 2001986, 2287984, 2761360, 2859980, 4003972, 5004965, 5719960, 8007944, 10009930, 11439920, 16015888, 20019860, 40039720, 80079440]

約数ペア:

[(1, 80079440), (2, 40039720), (4, 20019860), (5, 16015888), (7, 11439920), (8, 10009930), (10, 8007944), (14, 5719960), (16, 5004965), (20, 4003972), (28, 2859980), (29, 2761360), (35, 2287984), (40, 2001986), (56, 1429990), (58, 1380680), (70, 1143992), (80, 1000993), (112, 714995), (116, 690340), (140, 571996), (145, 552272), (203, 394480), (232, 345170), (280, 285998), (290, 276136), (406, 197240), (464, 172585), (560, 142999), (580, 138068), (812, 98620), (1015, 78896), (1160, 69034), (1624, 49310), (2030, 39448), (2320, 34517), (3248, 24655), (4060, 19724), (4931, 16240), (8120, 9862)]