20266400

素因数分解:

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

素因数の和:92

約数の個数: 216

約数和(自身を含む): 64120896

約数和(自身を除く): 43854496

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 32, 35, 40, 44, 47, 49, 50, 55, 56, 70, 77, 80, 88, 94, 98, 100, 110, 112, 140, 154, 160, 175, 176, 188, 196, 200, 220, 224, 235, 245, 275, 280, 308, 329, 350, 352, 376, 385, 392, 400, 440, 470, 490, 517, 539, 550, 560, 616, 658, 700, 752, 770, 784, 800, 880, 940, 980, 1034, 1078, 1100, 1120, 1175, 1225, 1232, 1316, 1400, 1504, 1540, 1568, 1645, 1760, 1880, 1925, 1960, 2068, 2156, 2200, 2303, 2350, 2450, 2464, 2585, 2632, 2695, 2800, 3080, 3290, 3619, 3760, 3850, 3920, 4136, 4312, 4400, 4606, 4700, 4900, 5170, 5264, 5390, 5600, 6160, 6580, 7238, 7520, 7700, 7840, 8225, 8272, 8624, 8800, 9212, 9400, 9800, 10340, 10528, 10780, 11515, 12320, 12925, 13160, 13475, 14476, 15400, 16450, 16544, 17248, 18095, 18424, 18800, 19600, 20680, 21560, 23030, 25333, 25850, 26320, 26950, 28952, 30800, 32900, 36190, 36848, 37600, 39200, 41360, 43120, 46060, 50666, 51700, 52640, 53900, 57575, 57904, 61600, 65800, 72380, 73696, 82720, 86240, 90475, 92120, 101332, 103400, 107800, 115150, 115808, 126665, 131600, 144760, 180950, 184240, 202664, 206800, 215600, 230300, 253330, 263200, 289520, 361900, 368480, 405328, 413600, 431200, 460600, 506660, 579040, 633325, 723800, 810656, 921200, 1013320, 1266650, 1447600, 1842400, 2026640, 2533300, 2895200, 4053280, 5066600, 10133200, 20266400]

約数ペア:

[(1, 20266400), (2, 10133200), (4, 5066600), (5, 4053280), (7, 2895200), (8, 2533300), (10, 2026640), (11, 1842400), (14, 1447600), (16, 1266650), (20, 1013320), (22, 921200), (25, 810656), (28, 723800), (32, 633325), (35, 579040), (40, 506660), (44, 460600), (47, 431200), (49, 413600), (50, 405328), (55, 368480), (56, 361900), (70, 289520), (77, 263200), (80, 253330), (88, 230300), (94, 215600), (98, 206800), (100, 202664), (110, 184240), (112, 180950), (140, 144760), (154, 131600), (160, 126665), (175, 115808), (176, 115150), (188, 107800), (196, 103400), (200, 101332), (220, 92120), (224, 90475), (235, 86240), (245, 82720), (275, 73696), (280, 72380), (308, 65800), (329, 61600), (350, 57904), (352, 57575), (376, 53900), (385, 52640), (392, 51700), (400, 50666), (440, 46060), (470, 43120), (490, 41360), (517, 39200), (539, 37600), (550, 36848), (560, 36190), (616, 32900), (658, 30800), (700, 28952), (752, 26950), (770, 26320), (784, 25850), (800, 25333), (880, 23030), (940, 21560), (980, 20680), (1034, 19600), (1078, 18800), (1100, 18424), (1120, 18095), (1175, 17248), (1225, 16544), (1232, 16450), (1316, 15400), (1400, 14476), (1504, 13475), (1540, 13160), (1568, 12925), (1645, 12320), (1760, 11515), (1880, 10780), (1925, 10528), (1960, 10340), (2068, 9800), (2156, 9400), (2200, 9212), (2303, 8800), (2350, 8624), (2450, 8272), (2464, 8225), (2585, 7840), (2632, 7700), (2695, 7520), (2800, 7238), (3080, 6580), (3290, 6160), (3619, 5600), (3760, 5390), (3850, 5264), (3920, 5170), (4136, 4900), (4312, 4700), (4400, 4606)]