21135625000

素因数分解:

$2^3\times 5^7\times 7^1\times {\mathrm{4831}}^1$

素因数の和:4879

約数の個数: 128

約数和(自身を含む): 56624855040

約数和(自身を除く): 35489230040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 625, 700, 875, 1000, 1250, 1400, 1750, 2500, 3125, 3500, 4375, 4831, 5000, 6250, 7000, 8750, 9662, 12500, 15625, 17500, 19324, 21875, 24155, 25000, 31250, 33817, 35000, 38648, 43750, 48310, 62500, 67634, 78125, 87500, 96620, 109375, 120775, 125000, 135268, 156250, 169085, 175000, 193240, 218750, 241550, 270536, 312500, 338170, 437500, 483100, 546875, 603875, 625000, 676340, 845425, 875000, 966200, 1093750, 1207750, 1352680, 1690850, 2187500, 2415500, 3019375, 3381700, 4227125, 4375000, 4831000, 6038750, 6763400, 8454250, 12077500, 15096875, 16908500, 21135625, 24155000, 30193750, 33817000, 42271250, 60387500, 75484375, 84542500, 105678125, 120775000, 150968750, 169085000, 211356250, 301937500, 377421875, 422712500, 528390625, 603875000, 754843750, 845425000, 1056781250, 1509687500, 2113562500, 2641953125, 3019375000, 4227125000, 5283906250, 10567812500, 21135625000]

約数ペア:

[(1, 21135625000), (2, 10567812500), (4, 5283906250), (5, 4227125000), (7, 3019375000), (8, 2641953125), (10, 2113562500), (14, 1509687500), (20, 1056781250), (25, 845425000), (28, 754843750), (35, 603875000), (40, 528390625), (50, 422712500), (56, 377421875), (70, 301937500), (100, 211356250), (125, 169085000), (140, 150968750), (175, 120775000), (200, 105678125), (250, 84542500), (280, 75484375), (350, 60387500), (500, 42271250), (625, 33817000), (700, 30193750), (875, 24155000), (1000, 21135625), (1250, 16908500), (1400, 15096875), (1750, 12077500), (2500, 8454250), (3125, 6763400), (3500, 6038750), (4375, 4831000), (4831, 4375000), (5000, 4227125), (6250, 3381700), (7000, 3019375), (8750, 2415500), (9662, 2187500), (12500, 1690850), (15625, 1352680), (17500, 1207750), (19324, 1093750), (21875, 966200), (24155, 875000), (25000, 845425), (31250, 676340), (33817, 625000), (35000, 603875), (38648, 546875), (43750, 483100), (48310, 437500), (62500, 338170), (67634, 312500), (78125, 270536), (87500, 241550), (96620, 218750), (109375, 193240), (120775, 175000), (125000, 169085), (135268, 156250)]