72018100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:278

約数の個数: 144

約数和(自身を含む): 199987200

約数和(自身を除く): 127969100

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 47, 50, 55, 70, 77, 94, 100, 110, 140, 154, 175, 188, 199, 220, 235, 275, 308, 329, 350, 385, 398, 470, 517, 550, 658, 700, 770, 796, 940, 995, 1034, 1100, 1175, 1316, 1393, 1540, 1645, 1925, 1990, 2068, 2189, 2350, 2585, 2786, 3290, 3619, 3850, 3980, 4378, 4700, 4975, 5170, 5572, 6580, 6965, 7238, 7700, 8225, 8756, 9353, 9950, 10340, 10945, 12925, 13930, 14476, 15323, 16450, 18095, 18706, 19900, 21890, 25850, 27860, 30646, 32900, 34825, 36190, 37412, 43780, 46765, 51700, 54725, 61292, 65471, 69650, 72380, 76615, 90475, 93530, 102883, 109450, 130942, 139300, 153230, 180950, 187060, 205766, 218900, 233825, 261884, 306460, 327355, 361900, 383075, 411532, 467650, 514415, 654710, 720181, 766150, 935300, 1028830, 1309420, 1440362, 1532300, 1636775, 2057660, 2572075, 2880724, 3273550, 3600905, 5144150, 6547100, 7201810, 10288300, 14403620, 18004525, 36009050, 72018100]

約数ペア:

[(1, 72018100), (2, 36009050), (4, 18004525), (5, 14403620), (7, 10288300), (10, 7201810), (11, 6547100), (14, 5144150), (20, 3600905), (22, 3273550), (25, 2880724), (28, 2572075), (35, 2057660), (44, 1636775), (47, 1532300), (50, 1440362), (55, 1309420), (70, 1028830), (77, 935300), (94, 766150), (100, 720181), (110, 654710), (140, 514415), (154, 467650), (175, 411532), (188, 383075), (199, 361900), (220, 327355), (235, 306460), (275, 261884), (308, 233825), (329, 218900), (350, 205766), (385, 187060), (398, 180950), (470, 153230), (517, 139300), (550, 130942), (658, 109450), (700, 102883), (770, 93530), (796, 90475), (940, 76615), (995, 72380), (1034, 69650), (1100, 65471), (1175, 61292), (1316, 54725), (1393, 51700), (1540, 46765), (1645, 43780), (1925, 37412), (1990, 36190), (2068, 34825), (2189, 32900), (2350, 30646), (2585, 27860), (2786, 25850), (3290, 21890), (3619, 19900), (3850, 18706), (3980, 18095), (4378, 16450), (4700, 15323), (4975, 14476), (5170, 13930), (5572, 12925), (6580, 10945), (6965, 10340), (7238, 9950), (7700, 9353), (8225, 8756)]