199984000

素因数分解:

$2^7\times 5^3\times {\mathrm{29}}^1\times {\mathrm{431}}^1$

素因数の和:489

約数の個数: 128

約数和(自身を含む): 515548800

約数和(自身を除く): 315564800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 64, 80, 100, 116, 125, 128, 145, 160, 200, 232, 250, 290, 320, 400, 431, 464, 500, 580, 640, 725, 800, 862, 928, 1000, 1160, 1450, 1600, 1724, 1856, 2000, 2155, 2320, 2900, 3200, 3448, 3625, 3712, 4000, 4310, 4640, 5800, 6896, 7250, 8000, 8620, 9280, 10775, 11600, 12499, 13792, 14500, 16000, 17240, 18560, 21550, 23200, 24998, 27584, 29000, 34480, 43100, 46400, 49996, 53875, 55168, 58000, 62495, 68960, 86200, 92800, 99992, 107750, 116000, 124990, 137920, 172400, 199984, 215500, 232000, 249980, 275840, 312475, 344800, 399968, 431000, 464000, 499960, 624950, 689600, 799936, 862000, 999920, 1249900, 1379200, 1562375, 1599872, 1724000, 1999840, 2499800, 3124750, 3448000, 3999680, 4999600, 6249500, 6896000, 7999360, 9999200, 12499000, 19998400, 24998000, 39996800, 49996000, 99992000, 199984000]

約数ペア:

[(1, 199984000), (2, 99992000), (4, 49996000), (5, 39996800), (8, 24998000), (10, 19998400), (16, 12499000), (20, 9999200), (25, 7999360), (29, 6896000), (32, 6249500), (40, 4999600), (50, 3999680), (58, 3448000), (64, 3124750), (80, 2499800), (100, 1999840), (116, 1724000), (125, 1599872), (128, 1562375), (145, 1379200), (160, 1249900), (200, 999920), (232, 862000), (250, 799936), (290, 689600), (320, 624950), (400, 499960), (431, 464000), (464, 431000), (500, 399968), (580, 344800), (640, 312475), (725, 275840), (800, 249980), (862, 232000), (928, 215500), (1000, 199984), (1160, 172400), (1450, 137920), (1600, 124990), (1724, 116000), (1856, 107750), (2000, 99992), (2155, 92800), (2320, 86200), (2900, 68960), (3200, 62495), (3448, 58000), (3625, 55168), (3712, 53875), (4000, 49996), (4310, 46400), (4640, 43100), (5800, 34480), (6896, 29000), (7250, 27584), (8000, 24998), (8620, 23200), (9280, 21550), (10775, 18560), (11600, 17240), (12499, 16000), (13792, 14500)]