1984000

素因数分解:

$2^9\times 5^3\times {\mathrm{31}}^1$

素因数の和:64

約数の個数: 80

約数和(自身を含む): 5106816

約数和(自身を除く): 3122816

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, 512, 620, 640, 775, 800, 992, 1000, 1240, 1280, 1550, 1600, 1984, 2000, 2480, 2560, 3100, 3200, 3875, 3968, 4000, 4960, 6200, 6400, 7750, 7936, 8000, 9920, 12400, 12800, 15500, 15872, 16000, 19840, 24800, 31000, 32000, 39680, 49600, 62000, 64000, 79360, 99200, 124000, 198400, 248000, 396800, 496000, 992000, 1984000]

約数ペア:

[(1, 1984000), (2, 992000), (4, 496000), (5, 396800), (8, 248000), (10, 198400), (16, 124000), (20, 99200), (25, 79360), (31, 64000), (32, 62000), (40, 49600), (50, 39680), (62, 32000), (64, 31000), (80, 24800), (100, 19840), (124, 16000), (125, 15872), (128, 15500), (155, 12800), (160, 12400), (200, 9920), (248, 8000), (250, 7936), (256, 7750), (310, 6400), (320, 6200), (400, 4960), (496, 4000), (500, 3968), (512, 3875), (620, 3200), (640, 3100), (775, 2560), (800, 2480), (992, 2000), (1000, 1984), (1240, 1600), (1280, 1550)]