768800000

素因数分解:

$2^8\times 5^5\times {\mathrm{31}}^2$

素因数の和:103

約数の個数: 162

約数和(自身を含む): 1981994238

約数和(自身を除く): 1213194238

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 128, 155, 160, 200, 248, 250, 256, 310, 320, 400, 496, 500, 620, 625, 640, 775, 800, 961, 992, 1000, 1240, 1250, 1280, 1550, 1600, 1922, 1984, 2000, 2480, 2500, 3100, 3125, 3200, 3844, 3875, 3968, 4000, 4805, 4960, 5000, 6200, 6250, 6400, 7688, 7750, 7936, 8000, 9610, 9920, 10000, 12400, 12500, 15376, 15500, 16000, 19220, 19375, 19840, 20000, 24025, 24800, 25000, 30752, 31000, 32000, 38440, 38750, 39680, 40000, 48050, 49600, 50000, 61504, 62000, 76880, 77500, 80000, 96100, 96875, 99200, 100000, 120125, 123008, 124000, 153760, 155000, 160000, 192200, 193750, 198400, 200000, 240250, 246016, 248000, 307520, 310000, 384400, 387500, 400000, 480500, 496000, 600625, 615040, 620000, 768800, 775000, 800000, 961000, 992000, 1201250, 1230080, 1240000, 1537600, 1550000, 1922000, 2402500, 2480000, 3003125, 3075200, 3100000, 3844000, 4805000, 4960000, 6006250, 6150400, 6200000, 7688000, 9610000, 12012500, 12400000, 15376000, 19220000, 24025000, 24800000, 30752000, 38440000, 48050000, 76880000, 96100000, 153760000, 192200000, 384400000, 768800000]

約数ペア:

[(1, 768800000), (2, 384400000), (4, 192200000), (5, 153760000), (8, 96100000), (10, 76880000), (16, 48050000), (20, 38440000), (25, 30752000), (31, 24800000), (32, 24025000), (40, 19220000), (50, 15376000), (62, 12400000), (64, 12012500), (80, 9610000), (100, 7688000), (124, 6200000), (125, 6150400), (128, 6006250), (155, 4960000), (160, 4805000), (200, 3844000), (248, 3100000), (250, 3075200), (256, 3003125), (310, 2480000), (320, 2402500), (400, 1922000), (496, 1550000), (500, 1537600), (620, 1240000), (625, 1230080), (640, 1201250), (775, 992000), (800, 961000), (961, 800000), (992, 775000), (1000, 768800), (1240, 620000), (1250, 615040), (1280, 600625), (1550, 496000), (1600, 480500), (1922, 400000), (1984, 387500), (2000, 384400), (2480, 310000), (2500, 307520), (3100, 248000), (3125, 246016), (3200, 240250), (3844, 200000), (3875, 198400), (3968, 193750), (4000, 192200), (4805, 160000), (4960, 155000), (5000, 153760), (6200, 124000), (6250, 123008), (6400, 120125), (7688, 100000), (7750, 99200), (7936, 96875), (8000, 96100), (9610, 80000), (9920, 77500), (10000, 76880), (12400, 62000), (12500, 61504), (15376, 50000), (15500, 49600), (16000, 48050), (19220, 40000), (19375, 39680), (19840, 38750), (20000, 38440), (24025, 32000), (24800, 31000), (25000, 30752)]