88900000

素因数分解:

$2^5\times 5^5\times 7^1\times {\mathrm{127}}^1$

素因数の和:169

約数の個数: 144

約数和(自身を含む): 251983872

約数和(自身を除く): 163083872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 112, 125, 127, 140, 160, 175, 200, 224, 250, 254, 280, 350, 400, 500, 508, 560, 625, 635, 700, 800, 875, 889, 1000, 1016, 1120, 1250, 1270, 1400, 1750, 1778, 2000, 2032, 2500, 2540, 2800, 3125, 3175, 3500, 3556, 4000, 4064, 4375, 4445, 5000, 5080, 5600, 6250, 6350, 7000, 7112, 8750, 8890, 10000, 10160, 12500, 12700, 14000, 14224, 15875, 17500, 17780, 20000, 20320, 21875, 22225, 25000, 25400, 28000, 28448, 31750, 35000, 35560, 43750, 44450, 50000, 50800, 63500, 70000, 71120, 79375, 87500, 88900, 100000, 101600, 111125, 127000, 140000, 142240, 158750, 175000, 177800, 222250, 254000, 317500, 350000, 355600, 396875, 444500, 508000, 555625, 635000, 700000, 711200, 793750, 889000, 1111250, 1270000, 1587500, 1778000, 2222500, 2540000, 2778125, 3175000, 3556000, 4445000, 5556250, 6350000, 8890000, 11112500, 12700000, 17780000, 22225000, 44450000, 88900000]

約数ペア:

[(1, 88900000), (2, 44450000), (4, 22225000), (5, 17780000), (7, 12700000), (8, 11112500), (10, 8890000), (14, 6350000), (16, 5556250), (20, 4445000), (25, 3556000), (28, 3175000), (32, 2778125), (35, 2540000), (40, 2222500), (50, 1778000), (56, 1587500), (70, 1270000), (80, 1111250), (100, 889000), (112, 793750), (125, 711200), (127, 700000), (140, 635000), (160, 555625), (175, 508000), (200, 444500), (224, 396875), (250, 355600), (254, 350000), (280, 317500), (350, 254000), (400, 222250), (500, 177800), (508, 175000), (560, 158750), (625, 142240), (635, 140000), (700, 127000), (800, 111125), (875, 101600), (889, 100000), (1000, 88900), (1016, 87500), (1120, 79375), (1250, 71120), (1270, 70000), (1400, 63500), (1750, 50800), (1778, 50000), (2000, 44450), (2032, 43750), (2500, 35560), (2540, 35000), (2800, 31750), (3125, 28448), (3175, 28000), (3500, 25400), (3556, 25000), (4000, 22225), (4064, 21875), (4375, 20320), (4445, 20000), (5000, 17780), (5080, 17500), (5600, 15875), (6250, 14224), (6350, 14000), (7000, 12700), (7112, 12500), (8750, 10160), (8890, 10000)]