78526000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 160

約数和(自身を含む): 222842880

約数和(自身を除く): 144316880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 71, 79, 80, 100, 112, 125, 140, 142, 158, 175, 200, 250, 280, 284, 316, 350, 355, 395, 400, 497, 500, 553, 560, 568, 632, 700, 710, 790, 875, 994, 1000, 1106, 1136, 1264, 1400, 1420, 1580, 1750, 1775, 1975, 1988, 2000, 2212, 2485, 2765, 2800, 2840, 3160, 3500, 3550, 3950, 3976, 4424, 4970, 5530, 5609, 5680, 6320, 7000, 7100, 7900, 7952, 8848, 8875, 9875, 9940, 11060, 11218, 12425, 13825, 14000, 14200, 15800, 17750, 19750, 19880, 22120, 22436, 24850, 27650, 28045, 28400, 31600, 35500, 39263, 39500, 39760, 44240, 44872, 49700, 55300, 56090, 62125, 69125, 71000, 78526, 79000, 89744, 99400, 110600, 112180, 124250, 138250, 140225, 142000, 157052, 158000, 196315, 198800, 221200, 224360, 248500, 276500, 280450, 314104, 392630, 448720, 497000, 553000, 560900, 628208, 701125, 785260, 981575, 994000, 1106000, 1121800, 1402250, 1570520, 1963150, 2243600, 2804500, 3141040, 3926300, 4907875, 5609000, 7852600, 9815750, 11218000, 15705200, 19631500, 39263000, 78526000]

約数ペア:

[(1, 78526000), (2, 39263000), (4, 19631500), (5, 15705200), (7, 11218000), (8, 9815750), (10, 7852600), (14, 5609000), (16, 4907875), (20, 3926300), (25, 3141040), (28, 2804500), (35, 2243600), (40, 1963150), (50, 1570520), (56, 1402250), (70, 1121800), (71, 1106000), (79, 994000), (80, 981575), (100, 785260), (112, 701125), (125, 628208), (140, 560900), (142, 553000), (158, 497000), (175, 448720), (200, 392630), (250, 314104), (280, 280450), (284, 276500), (316, 248500), (350, 224360), (355, 221200), (395, 198800), (400, 196315), (497, 158000), (500, 157052), (553, 142000), (560, 140225), (568, 138250), (632, 124250), (700, 112180), (710, 110600), (790, 99400), (875, 89744), (994, 79000), (1000, 78526), (1106, 71000), (1136, 69125), (1264, 62125), (1400, 56090), (1420, 55300), (1580, 49700), (1750, 44872), (1775, 44240), (1975, 39760), (1988, 39500), (2000, 39263), (2212, 35500), (2485, 31600), (2765, 28400), (2800, 28045), (2840, 27650), (3160, 24850), (3500, 22436), (3550, 22120), (3950, 19880), (3976, 19750), (4424, 17750), (4970, 15800), (5530, 14200), (5609, 14000), (5680, 13825), (6320, 12425), (7000, 11218), (7100, 11060), (7900, 9940), (7952, 9875), (8848, 8875)]