18647440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 120

約数和(自身を含む): 51907392

約数和(自身を除く): 33259952

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 67, 70, 71, 80, 98, 112, 134, 140, 142, 196, 245, 268, 280, 284, 335, 355, 392, 469, 490, 497, 536, 560, 568, 670, 710, 784, 938, 980, 994, 1072, 1136, 1340, 1420, 1876, 1960, 1988, 2345, 2485, 2680, 2840, 3283, 3479, 3752, 3920, 3976, 4690, 4757, 4970, 5360, 5680, 6566, 6958, 7504, 7952, 9380, 9514, 9940, 13132, 13916, 16415, 17395, 18760, 19028, 19880, 23785, 26264, 27832, 32830, 33299, 34790, 37520, 38056, 39760, 47570, 52528, 55664, 65660, 66598, 69580, 76112, 95140, 131320, 133196, 139160, 166495, 190280, 233093, 262640, 266392, 278320, 332990, 380560, 466186, 532784, 665980, 932372, 1165465, 1331960, 1864744, 2330930, 2663920, 3729488, 4661860, 9323720, 18647440]

約数ペア:

[(1, 18647440), (2, 9323720), (4, 4661860), (5, 3729488), (7, 2663920), (8, 2330930), (10, 1864744), (14, 1331960), (16, 1165465), (20, 932372), (28, 665980), (35, 532784), (40, 466186), (49, 380560), (56, 332990), (67, 278320), (70, 266392), (71, 262640), (80, 233093), (98, 190280), (112, 166495), (134, 139160), (140, 133196), (142, 131320), (196, 95140), (245, 76112), (268, 69580), (280, 66598), (284, 65660), (335, 55664), (355, 52528), (392, 47570), (469, 39760), (490, 38056), (497, 37520), (536, 34790), (560, 33299), (568, 32830), (670, 27832), (710, 26264), (784, 23785), (938, 19880), (980, 19028), (994, 18760), (1072, 17395), (1136, 16415), (1340, 13916), (1420, 13132), (1876, 9940), (1960, 9514), (1988, 9380), (2345, 7952), (2485, 7504), (2680, 6958), (2840, 6566), (3283, 5680), (3479, 5360), (3752, 4970), (3920, 4757), (3976, 4690)]