1999376000

素因数分解:

$2^7\times 5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:228

約数の個数: 256

約数和(自身を含む): 5346432000

約数和(自身を除く): 3347056000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 31, 32, 40, 50, 58, 62, 64, 80, 100, 116, 124, 125, 128, 139, 145, 155, 160, 200, 232, 248, 250, 278, 290, 310, 320, 400, 464, 496, 500, 556, 580, 620, 640, 695, 725, 775, 800, 899, 928, 992, 1000, 1112, 1160, 1240, 1390, 1450, 1550, 1600, 1798, 1856, 1984, 2000, 2224, 2320, 2480, 2780, 2900, 3100, 3200, 3475, 3596, 3625, 3712, 3875, 3968, 4000, 4031, 4309, 4448, 4495, 4640, 4960, 5560, 5800, 6200, 6950, 7192, 7250, 7750, 8000, 8062, 8618, 8896, 8990, 9280, 9920, 11120, 11600, 12400, 13900, 14384, 14500, 15500, 16000, 16124, 17236, 17375, 17792, 17980, 18560, 19840, 20155, 21545, 22240, 22475, 23200, 24800, 27800, 28768, 29000, 31000, 32248, 34472, 34750, 35960, 40310, 43090, 44480, 44950, 46400, 49600, 55600, 57536, 58000, 62000, 64496, 68944, 69500, 71920, 80620, 86180, 88960, 89900, 92800, 99200, 100775, 107725, 111200, 112375, 115072, 116000, 124000, 124961, 128992, 137888, 139000, 143840, 161240, 172360, 179800, 201550, 215450, 222400, 224750, 232000, 248000, 249922, 257984, 275776, 278000, 287680, 322480, 344720, 359600, 403100, 430900, 444800, 449500, 464000, 496000, 499844, 503875, 515968, 538625, 551552, 556000, 575360, 624805, 644960, 689440, 719200, 806200, 861800, 899000, 999688, 1007750, 1077250, 1112000, 1249610, 1289920, 1378880, 1438400, 1612400, 1723600, 1798000, 1999376, 2015500, 2154500, 2224000, 2499220, 2579840, 2757760, 2876800, 3124025, 3224800, 3447200, 3596000, 3998752, 4031000, 4309000, 4998440, 6248050, 6449600, 6894400, 7192000, 7997504, 8062000, 8618000, 9996880, 12496100, 12899200, 13788800, 14384000, 15620125, 15995008, 16124000, 17236000, 19993760, 24992200, 31240250, 32248000, 34472000, 39987520, 49984400, 62480500, 64496000, 68944000, 79975040, 99968800, 124961000, 199937600, 249922000, 399875200, 499844000, 999688000, 1999376000]

約数ペア:

[(1, 1999376000), (2, 999688000), (4, 499844000), (5, 399875200), (8, 249922000), (10, 199937600), (16, 124961000), (20, 99968800), (25, 79975040), (29, 68944000), (31, 64496000), (32, 62480500), (40, 49984400), (50, 39987520), (58, 34472000), (62, 32248000), (64, 31240250), (80, 24992200), (100, 19993760), (116, 17236000), (124, 16124000), (125, 15995008), (128, 15620125), (139, 14384000), (145, 13788800), (155, 12899200), (160, 12496100), (200, 9996880), (232, 8618000), (248, 8062000), (250, 7997504), (278, 7192000), (290, 6894400), (310, 6449600), (320, 6248050), (400, 4998440), (464, 4309000), (496, 4031000), (500, 3998752), (556, 3596000), (580, 3447200), (620, 3224800), (640, 3124025), (695, 2876800), (725, 2757760), (775, 2579840), (800, 2499220), (899, 2224000), (928, 2154500), (992, 2015500), (1000, 1999376), (1112, 1798000), (1160, 1723600), (1240, 1612400), (1390, 1438400), (1450, 1378880), (1550, 1289920), (1600, 1249610), (1798, 1112000), (1856, 1077250), (1984, 1007750), (2000, 999688), (2224, 899000), (2320, 861800), (2480, 806200), (2780, 719200), (2900, 689440), (3100, 644960), (3200, 624805), (3475, 575360), (3596, 556000), (3625, 551552), (3712, 538625), (3875, 515968), (3968, 503875), (4000, 499844), (4031, 496000), (4309, 464000), (4448, 449500), (4495, 444800), (4640, 430900), (4960, 403100), (5560, 359600), (5800, 344720), (6200, 322480), (6950, 287680), (7192, 278000), (7250, 275776), (7750, 257984), (8000, 249922), (8062, 248000), (8618, 232000), (8896, 224750), (8990, 222400), (9280, 215450), (9920, 201550), (11120, 179800), (11600, 172360), (12400, 161240), (13900, 143840), (14384, 139000), (14500, 137888), (15500, 128992), (16000, 124961), (16124, 124000), (17236, 116000), (17375, 115072), (17792, 112375), (17980, 111200), (18560, 107725), (19840, 100775), (20155, 99200), (21545, 92800), (22240, 89900), (22475, 88960), (23200, 86180), (24800, 80620), (27800, 71920), (28768, 69500), (29000, 68944), (31000, 64496), (32248, 62000), (34472, 58000), (34750, 57536), (35960, 55600), (40310, 49600), (43090, 46400), (44480, 44950)]