2480000

素因数分解:

$2^7\times 5^4\times {\mathrm{31}}^1$

素因数の和:65

約数の個数: 80

約数和(自身を含む): 6372960

約数和(自身を除く): 3892960

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, 310, 320, 400, 496, 500, 620, 625, 640, 775, 800, 992, 1000, 1240, 1250, 1550, 1600, 1984, 2000, 2480, 2500, 3100, 3200, 3875, 3968, 4000, 4960, 5000, 6200, 7750, 8000, 9920, 10000, 12400, 15500, 16000, 19375, 19840, 20000, 24800, 31000, 38750, 40000, 49600, 62000, 77500, 80000, 99200, 124000, 155000, 248000, 310000, 496000, 620000, 1240000, 2480000]

約数ペア:

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