1388875000

素因数分解:

$2^3\times 5^6\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:348

約数の個数: 112

約数和(自身を含む): 3346832160

約数和(自身を除く): 1957957160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 125, 164, 200, 205, 250, 271, 328, 410, 500, 542, 625, 820, 1000, 1025, 1084, 1250, 1355, 1640, 2050, 2168, 2500, 2710, 3125, 4100, 5000, 5125, 5420, 6250, 6775, 8200, 10250, 10840, 11111, 12500, 13550, 15625, 20500, 22222, 25000, 25625, 27100, 31250, 33875, 41000, 44444, 51250, 54200, 55555, 62500, 67750, 88888, 102500, 111110, 125000, 128125, 135500, 169375, 205000, 222220, 256250, 271000, 277775, 338750, 444440, 512500, 555550, 640625, 677500, 846875, 1025000, 1111100, 1281250, 1355000, 1388875, 1693750, 2222200, 2562500, 2777750, 3387500, 4234375, 5125000, 5555500, 6775000, 6944375, 8468750, 11111000, 13888750, 16937500, 27777500, 33875000, 34721875, 55555000, 69443750, 138887500, 173609375, 277775000, 347218750, 694437500, 1388875000]

約数ペア:

[(1, 1388875000), (2, 694437500), (4, 347218750), (5, 277775000), (8, 173609375), (10, 138887500), (20, 69443750), (25, 55555000), (40, 34721875), (41, 33875000), (50, 27777500), (82, 16937500), (100, 13888750), (125, 11111000), (164, 8468750), (200, 6944375), (205, 6775000), (250, 5555500), (271, 5125000), (328, 4234375), (410, 3387500), (500, 2777750), (542, 2562500), (625, 2222200), (820, 1693750), (1000, 1388875), (1025, 1355000), (1084, 1281250), (1250, 1111100), (1355, 1025000), (1640, 846875), (2050, 677500), (2168, 640625), (2500, 555550), (2710, 512500), (3125, 444440), (4100, 338750), (5000, 277775), (5125, 271000), (5420, 256250), (6250, 222220), (6775, 205000), (8200, 169375), (10250, 135500), (10840, 128125), (11111, 125000), (12500, 111110), (13550, 102500), (15625, 88888), (20500, 67750), (22222, 62500), (25000, 55555), (25625, 54200), (27100, 51250), (31250, 44444), (33875, 41000)]