399490000

素因数分解:

$2^4\times 5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1$

素因数の和:487

約数の個数: 200

約数和(自身を含む): 1193118080

約数和(自身を除く): 793628080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 112, 125, 130, 140, 175, 182, 200, 208, 250, 260, 280, 325, 350, 364, 400, 439, 455, 500, 520, 560, 625, 650, 700, 728, 875, 878, 910, 1000, 1040, 1250, 1300, 1400, 1456, 1625, 1750, 1756, 1820, 2000, 2195, 2275, 2500, 2600, 2800, 3073, 3250, 3500, 3512, 3640, 4375, 4390, 4550, 5000, 5200, 5707, 6146, 6500, 7000, 7024, 7280, 8125, 8750, 8780, 9100, 10000, 10975, 11375, 11414, 12292, 13000, 14000, 15365, 16250, 17500, 17560, 18200, 21950, 22750, 22828, 24584, 26000, 28535, 30730, 32500, 35000, 35120, 36400, 39949, 43900, 45500, 45656, 49168, 54875, 56875, 57070, 61460, 65000, 70000, 76825, 79898, 87800, 91000, 91312, 109750, 113750, 114140, 122920, 130000, 142675, 153650, 159796, 175600, 182000, 199745, 219500, 227500, 228280, 245840, 274375, 285350, 307300, 319592, 384125, 399490, 439000, 455000, 456560, 548750, 570700, 614600, 639184, 713375, 768250, 798980, 878000, 910000, 998725, 1097500, 1141400, 1229200, 1426750, 1536500, 1597960, 1920625, 1997450, 2195000, 2282800, 2853500, 3073000, 3195920, 3566875, 3841250, 3994900, 4390000, 4993625, 5707000, 6146000, 7133750, 7682500, 7989800, 9987250, 11414000, 14267500, 15365000, 15979600, 19974500, 24968125, 28535000, 30730000, 39949000, 49936250, 57070000, 79898000, 99872500, 199745000, 399490000]

約数ペア:

[(1, 399490000), (2, 199745000), (4, 99872500), (5, 79898000), (7, 57070000), (8, 49936250), (10, 39949000), (13, 30730000), (14, 28535000), (16, 24968125), (20, 19974500), (25, 15979600), (26, 15365000), (28, 14267500), (35, 11414000), (40, 9987250), (50, 7989800), (52, 7682500), (56, 7133750), (65, 6146000), (70, 5707000), (80, 4993625), (91, 4390000), (100, 3994900), (104, 3841250), (112, 3566875), (125, 3195920), (130, 3073000), (140, 2853500), (175, 2282800), (182, 2195000), (200, 1997450), (208, 1920625), (250, 1597960), (260, 1536500), (280, 1426750), (325, 1229200), (350, 1141400), (364, 1097500), (400, 998725), (439, 910000), (455, 878000), (500, 798980), (520, 768250), (560, 713375), (625, 639184), (650, 614600), (700, 570700), (728, 548750), (875, 456560), (878, 455000), (910, 439000), (1000, 399490), (1040, 384125), (1250, 319592), (1300, 307300), (1400, 285350), (1456, 274375), (1625, 245840), (1750, 228280), (1756, 227500), (1820, 219500), (2000, 199745), (2195, 182000), (2275, 175600), (2500, 159796), (2600, 153650), (2800, 142675), (3073, 130000), (3250, 122920), (3500, 114140), (3512, 113750), (3640, 109750), (4375, 91312), (4390, 91000), (4550, 87800), (5000, 79898), (5200, 76825), (5707, 70000), (6146, 65000), (6500, 61460), (7000, 57070), (7024, 56875), (7280, 54875), (8125, 49168), (8750, 45656), (8780, 45500), (9100, 43900), (10000, 39949), (10975, 36400), (11375, 35120), (11414, 35000), (12292, 32500), (13000, 30730), (14000, 28535), (15365, 26000), (16250, 24584), (17500, 22828), (17560, 22750), (18200, 21950)]