20770000

素因数分解:

$2^4\times 5^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:126

約数の個数: 100

約数和(自身を含む): 52683136

約数和(自身を除く): 31913136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 67, 80, 100, 124, 125, 134, 155, 200, 248, 250, 268, 310, 335, 400, 496, 500, 536, 620, 625, 670, 775, 1000, 1072, 1240, 1250, 1340, 1550, 1675, 2000, 2077, 2480, 2500, 2680, 3100, 3350, 3875, 4154, 5000, 5360, 6200, 6700, 7750, 8308, 8375, 10000, 10385, 12400, 13400, 15500, 16616, 16750, 19375, 20770, 26800, 31000, 33232, 33500, 38750, 41540, 41875, 51925, 62000, 67000, 77500, 83080, 83750, 103850, 134000, 155000, 166160, 167500, 207700, 259625, 310000, 335000, 415400, 519250, 670000, 830800, 1038500, 1298125, 2077000, 2596250, 4154000, 5192500, 10385000, 20770000]

約数ペア:

[(1, 20770000), (2, 10385000), (4, 5192500), (5, 4154000), (8, 2596250), (10, 2077000), (16, 1298125), (20, 1038500), (25, 830800), (31, 670000), (40, 519250), (50, 415400), (62, 335000), (67, 310000), (80, 259625), (100, 207700), (124, 167500), (125, 166160), (134, 155000), (155, 134000), (200, 103850), (248, 83750), (250, 83080), (268, 77500), (310, 67000), (335, 62000), (400, 51925), (496, 41875), (500, 41540), (536, 38750), (620, 33500), (625, 33232), (670, 31000), (775, 26800), (1000, 20770), (1072, 19375), (1240, 16750), (1250, 16616), (1340, 15500), (1550, 13400), (1675, 12400), (2000, 10385), (2077, 10000), (2480, 8375), (2500, 8308), (2680, 7750), (3100, 6700), (3350, 6200), (3875, 5360), (4154, 5000)]