800012500

素因数分解:

$2^2\times 5^5\times 7^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:300

約数の個数: 144

約数和(自身を含む): 2057868288

約数和(自身を除く): 1257855788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 50, 70, 82, 100, 125, 140, 164, 175, 205, 223, 250, 287, 350, 410, 446, 500, 574, 625, 700, 820, 875, 892, 1025, 1115, 1148, 1250, 1435, 1561, 1750, 2050, 2230, 2500, 2870, 3122, 3125, 3500, 4100, 4375, 4460, 5125, 5575, 5740, 6244, 6250, 7175, 7805, 8750, 9143, 10250, 11150, 12500, 14350, 15610, 17500, 18286, 20500, 21875, 22300, 25625, 27875, 28700, 31220, 35875, 36572, 39025, 43750, 45715, 51250, 55750, 64001, 71750, 78050, 87500, 91430, 102500, 111500, 128002, 128125, 139375, 143500, 156100, 179375, 182860, 195125, 228575, 256004, 256250, 278750, 320005, 358750, 390250, 457150, 512500, 557500, 640010, 696875, 717500, 780500, 896875, 914300, 975625, 1142875, 1280020, 1393750, 1600025, 1793750, 1951250, 2285750, 2787500, 3200050, 3587500, 3902500, 4571500, 4878125, 5714375, 6400100, 8000125, 9756250, 11428750, 16000250, 19512500, 22857500, 28571875, 32000500, 40000625, 57143750, 80001250, 114287500, 160002500, 200003125, 400006250, 800012500]

約数ペア:

[(1, 800012500), (2, 400006250), (4, 200003125), (5, 160002500), (7, 114287500), (10, 80001250), (14, 57143750), (20, 40000625), (25, 32000500), (28, 28571875), (35, 22857500), (41, 19512500), (50, 16000250), (70, 11428750), (82, 9756250), (100, 8000125), (125, 6400100), (140, 5714375), (164, 4878125), (175, 4571500), (205, 3902500), (223, 3587500), (250, 3200050), (287, 2787500), (350, 2285750), (410, 1951250), (446, 1793750), (500, 1600025), (574, 1393750), (625, 1280020), (700, 1142875), (820, 975625), (875, 914300), (892, 896875), (1025, 780500), (1115, 717500), (1148, 696875), (1250, 640010), (1435, 557500), (1561, 512500), (1750, 457150), (2050, 390250), (2230, 358750), (2500, 320005), (2870, 278750), (3122, 256250), (3125, 256004), (3500, 228575), (4100, 195125), (4375, 182860), (4460, 179375), (5125, 156100), (5575, 143500), (5740, 139375), (6244, 128125), (6250, 128002), (7175, 111500), (7805, 102500), (8750, 91430), (9143, 87500), (10250, 78050), (11150, 71750), (12500, 64001), (14350, 55750), (15610, 51250), (17500, 45715), (18286, 43750), (20500, 39025), (21875, 36572), (22300, 35875), (25625, 31220), (27875, 28700)]