289520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1$

素因数の和:78

約数の個数: 80

約数和(自身を含む): 857088

約数和(自身を除く): 567568

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 47, 55, 56, 70, 77, 80, 88, 94, 110, 112, 140, 154, 176, 188, 220, 235, 280, 308, 329, 376, 385, 440, 470, 517, 560, 616, 658, 752, 770, 880, 940, 1034, 1232, 1316, 1540, 1645, 1880, 2068, 2585, 2632, 3080, 3290, 3619, 3760, 4136, 5170, 5264, 6160, 6580, 7238, 8272, 10340, 13160, 14476, 18095, 20680, 26320, 28952, 36190, 41360, 57904, 72380, 144760, 289520]

約数ペア:

[(1, 289520), (2, 144760), (4, 72380), (5, 57904), (7, 41360), (8, 36190), (10, 28952), (11, 26320), (14, 20680), (16, 18095), (20, 14476), (22, 13160), (28, 10340), (35, 8272), (40, 7238), (44, 6580), (47, 6160), (55, 5264), (56, 5170), (70, 4136), (77, 3760), (80, 3619), (88, 3290), (94, 3080), (110, 2632), (112, 2585), (140, 2068), (154, 1880), (176, 1645), (188, 1540), (220, 1316), (235, 1232), (280, 1034), (308, 940), (329, 880), (376, 770), (385, 752), (440, 658), (470, 616), (517, 560)]