4960000

素因数分解:

$2^8\times 5^4\times {\mathrm{31}}^1$

素因数の和:67

約数の個数: 90

約数和(自身を含む): 12770912

約数和(自身を除く): 7810912

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, 992, 1000, 1240, 1250, 1280, 1550, 1600, 1984, 2000, 2480, 2500, 3100, 3200, 3875, 3968, 4000, 4960, 5000, 6200, 6400, 7750, 7936, 8000, 9920, 10000, 12400, 15500, 16000, 19375, 19840, 20000, 24800, 31000, 32000, 38750, 39680, 40000, 49600, 62000, 77500, 80000, 99200, 124000, 155000, 160000, 198400, 248000, 310000, 496000, 620000, 992000, 1240000, 2480000, 4960000]

約数ペア:

[(1, 4960000), (2, 2480000), (4, 1240000), (5, 992000), (8, 620000), (10, 496000), (16, 310000), (20, 248000), (25, 198400), (31, 160000), (32, 155000), (40, 124000), (50, 99200), (62, 80000), (64, 77500), (80, 62000), (100, 49600), (124, 40000), (125, 39680), (128, 38750), (155, 32000), (160, 31000), (200, 24800), (248, 20000), (250, 19840), (256, 19375), (310, 16000), (320, 15500), (400, 12400), (496, 10000), (500, 9920), (620, 8000), (625, 7936), (640, 7750), (775, 6400), (800, 6200), (992, 5000), (1000, 4960), (1240, 4000), (1250, 3968), (1280, 3875), (1550, 3200), (1600, 3100), (1984, 2500), (2000, 2480)]