79825000

素因数分解:

$2^3\times 5^5\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:165

約数の個数: 96

約数和(自身を含む): 194987520

約数和(自身を除く): 115162520

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 103, 124, 125, 155, 200, 206, 248, 250, 310, 412, 500, 515, 620, 625, 775, 824, 1000, 1030, 1240, 1250, 1550, 2060, 2500, 2575, 3100, 3125, 3193, 3875, 4120, 5000, 5150, 6200, 6250, 6386, 7750, 10300, 12500, 12772, 12875, 15500, 15965, 19375, 20600, 25000, 25544, 25750, 31000, 31930, 38750, 51500, 63860, 64375, 77500, 79825, 96875, 103000, 127720, 128750, 155000, 159650, 193750, 257500, 319300, 321875, 387500, 399125, 515000, 638600, 643750, 775000, 798250, 1287500, 1596500, 1995625, 2575000, 3193000, 3991250, 7982500, 9978125, 15965000, 19956250, 39912500, 79825000]

約数ペア:

[(1, 79825000), (2, 39912500), (4, 19956250), (5, 15965000), (8, 9978125), (10, 7982500), (20, 3991250), (25, 3193000), (31, 2575000), (40, 1995625), (50, 1596500), (62, 1287500), (100, 798250), (103, 775000), (124, 643750), (125, 638600), (155, 515000), (200, 399125), (206, 387500), (248, 321875), (250, 319300), (310, 257500), (412, 193750), (500, 159650), (515, 155000), (620, 128750), (625, 127720), (775, 103000), (824, 96875), (1000, 79825), (1030, 77500), (1240, 64375), (1250, 63860), (1550, 51500), (2060, 38750), (2500, 31930), (2575, 31000), (3100, 25750), (3125, 25544), (3193, 25000), (3875, 20600), (4120, 19375), (5000, 15965), (5150, 15500), (6200, 12875), (6250, 12772), (6386, 12500), (7750, 10300)]