11780000

素因数分解:

$2^5\times 5^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:80

約数の個数: 120

約数和(自身を含む): 31489920

約数和(自身を除く): 19709920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 31, 32, 38, 40, 50, 62, 76, 80, 95, 100, 124, 125, 152, 155, 160, 190, 200, 248, 250, 304, 310, 380, 400, 475, 496, 500, 589, 608, 620, 625, 760, 775, 800, 950, 992, 1000, 1178, 1240, 1250, 1520, 1550, 1900, 2000, 2356, 2375, 2480, 2500, 2945, 3040, 3100, 3800, 3875, 4000, 4712, 4750, 4960, 5000, 5890, 6200, 7600, 7750, 9424, 9500, 10000, 11780, 11875, 12400, 14725, 15200, 15500, 18848, 19000, 19375, 20000, 23560, 23750, 24800, 29450, 31000, 38000, 38750, 47120, 47500, 58900, 62000, 73625, 76000, 77500, 94240, 95000, 117800, 124000, 147250, 155000, 190000, 235600, 294500, 310000, 368125, 380000, 471200, 589000, 620000, 736250, 1178000, 1472500, 2356000, 2945000, 5890000, 11780000]

約数ペア:

[(1, 11780000), (2, 5890000), (4, 2945000), (5, 2356000), (8, 1472500), (10, 1178000), (16, 736250), (19, 620000), (20, 589000), (25, 471200), (31, 380000), (32, 368125), (38, 310000), (40, 294500), (50, 235600), (62, 190000), (76, 155000), (80, 147250), (95, 124000), (100, 117800), (124, 95000), (125, 94240), (152, 77500), (155, 76000), (160, 73625), (190, 62000), (200, 58900), (248, 47500), (250, 47120), (304, 38750), (310, 38000), (380, 31000), (400, 29450), (475, 24800), (496, 23750), (500, 23560), (589, 20000), (608, 19375), (620, 19000), (625, 18848), (760, 15500), (775, 15200), (800, 14725), (950, 12400), (992, 11875), (1000, 11780), (1178, 10000), (1240, 9500), (1250, 9424), (1520, 7750), (1550, 7600), (1900, 6200), (2000, 5890), (2356, 5000), (2375, 4960), (2480, 4750), (2500, 4712), (2945, 4000), (3040, 3875), (3100, 3800)]