287000000

素因数分解:

$2^6\times 5^6\times 7^1\times {\mathrm{41}}^1$

素因数の和:90

約数の個数: 196

約数和(自身を含む): 833426832

約数和(自身を除く): 546426832

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 41, 50, 56, 64, 70, 80, 82, 100, 112, 125, 140, 160, 164, 175, 200, 205, 224, 250, 280, 287, 320, 328, 350, 400, 410, 448, 500, 560, 574, 625, 656, 700, 800, 820, 875, 1000, 1025, 1120, 1148, 1250, 1312, 1400, 1435, 1600, 1640, 1750, 2000, 2050, 2240, 2296, 2500, 2624, 2800, 2870, 3125, 3280, 3500, 4000, 4100, 4375, 4592, 5000, 5125, 5600, 5740, 6250, 6560, 7000, 7175, 8000, 8200, 8750, 9184, 10000, 10250, 11200, 11480, 12500, 13120, 14000, 14350, 15625, 16400, 17500, 18368, 20000, 20500, 21875, 22960, 25000, 25625, 28000, 28700, 31250, 32800, 35000, 35875, 40000, 41000, 43750, 45920, 50000, 51250, 56000, 57400, 62500, 65600, 70000, 71750, 82000, 87500, 91840, 100000, 102500, 109375, 114800, 125000, 128125, 140000, 143500, 164000, 175000, 179375, 200000, 205000, 218750, 229600, 250000, 256250, 280000, 287000, 328000, 350000, 358750, 410000, 437500, 459200, 500000, 512500, 574000, 640625, 700000, 717500, 820000, 875000, 896875, 1000000, 1025000, 1148000, 1281250, 1400000, 1435000, 1640000, 1750000, 1793750, 2050000, 2296000, 2562500, 2870000, 3500000, 3587500, 4100000, 4484375, 5125000, 5740000, 7000000, 7175000, 8200000, 8968750, 10250000, 11480000, 14350000, 17937500, 20500000, 28700000, 35875000, 41000000, 57400000, 71750000, 143500000, 287000000]

約数ペア:

[(1, 287000000), (2, 143500000), (4, 71750000), (5, 57400000), (7, 41000000), (8, 35875000), (10, 28700000), (14, 20500000), (16, 17937500), (20, 14350000), (25, 11480000), (28, 10250000), (32, 8968750), (35, 8200000), (40, 7175000), (41, 7000000), (50, 5740000), (56, 5125000), (64, 4484375), (70, 4100000), (80, 3587500), (82, 3500000), (100, 2870000), (112, 2562500), (125, 2296000), (140, 2050000), (160, 1793750), (164, 1750000), (175, 1640000), (200, 1435000), (205, 1400000), (224, 1281250), (250, 1148000), (280, 1025000), (287, 1000000), (320, 896875), (328, 875000), (350, 820000), (400, 717500), (410, 700000), (448, 640625), (500, 574000), (560, 512500), (574, 500000), (625, 459200), (656, 437500), (700, 410000), (800, 358750), (820, 350000), (875, 328000), (1000, 287000), (1025, 280000), (1120, 256250), (1148, 250000), (1250, 229600), (1312, 218750), (1400, 205000), (1435, 200000), (1600, 179375), (1640, 175000), (1750, 164000), (2000, 143500), (2050, 140000), (2240, 128125), (2296, 125000), (2500, 114800), (2624, 109375), (2800, 102500), (2870, 100000), (3125, 91840), (3280, 87500), (3500, 82000), (4000, 71750), (4100, 70000), (4375, 65600), (4592, 62500), (5000, 57400), (5125, 56000), (5600, 51250), (5740, 50000), (6250, 45920), (6560, 43750), (7000, 41000), (7175, 40000), (8000, 35875), (8200, 35000), (8750, 32800), (9184, 31250), (10000, 28700), (10250, 28000), (11200, 25625), (11480, 25000), (12500, 22960), (13120, 21875), (14000, 20500), (14350, 20000), (15625, 18368), (16400, 17500)]