6720800000

素因数分解:

$2^8\times 5^5\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:343

約数の個数: 216

約数和(自身を含む): 17372888064

約数和(自身を除く): 10652088064

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, 271, 310, 320, 400, 496, 500, 542, 620, 625, 640, 775, 800, 992, 1000, 1084, 1240, 1250, 1280, 1355, 1550, 1600, 1984, 2000, 2168, 2480, 2500, 2710, 3100, 3125, 3200, 3875, 3968, 4000, 4336, 4960, 5000, 5420, 6200, 6250, 6400, 6775, 7750, 7936, 8000, 8401, 8672, 9920, 10000, 10840, 12400, 12500, 13550, 15500, 16000, 16802, 17344, 19375, 19840, 20000, 21680, 24800, 25000, 27100, 31000, 32000, 33604, 33875, 34688, 38750, 39680, 40000, 42005, 43360, 49600, 50000, 54200, 62000, 67208, 67750, 69376, 77500, 80000, 84010, 86720, 96875, 99200, 100000, 108400, 124000, 134416, 135500, 155000, 160000, 168020, 169375, 173440, 193750, 198400, 200000, 210025, 216800, 248000, 268832, 271000, 310000, 336040, 338750, 346880, 387500, 400000, 420050, 433600, 496000, 537664, 542000, 620000, 672080, 677500, 775000, 800000, 840100, 846875, 867200, 992000, 1050125, 1075328, 1084000, 1240000, 1344160, 1355000, 1550000, 1680200, 1693750, 1734400, 2100250, 2150656, 2168000, 2480000, 2688320, 2710000, 3100000, 3360400, 3387500, 4200500, 4336000, 4960000, 5250625, 5376640, 5420000, 6200000, 6720800, 6775000, 8401000, 8672000, 10501250, 10753280, 10840000, 12400000, 13441600, 13550000, 16802000, 21002500, 21680000, 24800000, 26253125, 26883200, 27100000, 33604000, 42005000, 43360000, 52506250, 53766400, 54200000, 67208000, 84010000, 105012500, 108400000, 134416000, 168020000, 210025000, 216800000, 268832000, 336040000, 420050000, 672080000, 840100000, 1344160000, 1680200000, 3360400000, 6720800000]

約数ペア:

[(1, 6720800000), (2, 3360400000), (4, 1680200000), (5, 1344160000), (8, 840100000), (10, 672080000), (16, 420050000), (20, 336040000), (25, 268832000), (31, 216800000), (32, 210025000), (40, 168020000), (50, 134416000), (62, 108400000), (64, 105012500), (80, 84010000), (100, 67208000), (124, 54200000), (125, 53766400), (128, 52506250), (155, 43360000), (160, 42005000), (200, 33604000), (248, 27100000), (250, 26883200), (256, 26253125), (271, 24800000), (310, 21680000), (320, 21002500), (400, 16802000), (496, 13550000), (500, 13441600), (542, 12400000), (620, 10840000), (625, 10753280), (640, 10501250), (775, 8672000), (800, 8401000), (992, 6775000), (1000, 6720800), (1084, 6200000), (1240, 5420000), (1250, 5376640), (1280, 5250625), (1355, 4960000), (1550, 4336000), (1600, 4200500), (1984, 3387500), (2000, 3360400), (2168, 3100000), (2480, 2710000), (2500, 2688320), (2710, 2480000), (3100, 2168000), (3125, 2150656), (3200, 2100250), (3875, 1734400), (3968, 1693750), (4000, 1680200), (4336, 1550000), (4960, 1355000), (5000, 1344160), (5420, 1240000), (6200, 1084000), (6250, 1075328), (6400, 1050125), (6775, 992000), (7750, 867200), (7936, 846875), (8000, 840100), (8401, 800000), (8672, 775000), (9920, 677500), (10000, 672080), (10840, 620000), (12400, 542000), (12500, 537664), (13550, 496000), (15500, 433600), (16000, 420050), (16802, 400000), (17344, 387500), (19375, 346880), (19840, 338750), (20000, 336040), (21680, 310000), (24800, 271000), (25000, 268832), (27100, 248000), (31000, 216800), (32000, 210025), (33604, 200000), (33875, 198400), (34688, 193750), (38750, 173440), (39680, 169375), (40000, 168020), (42005, 160000), (43360, 155000), (49600, 135500), (50000, 134416), (54200, 124000), (62000, 108400), (67208, 100000), (67750, 99200), (69376, 96875), (77500, 86720), (80000, 84010)]