81418400

素因数分解:

$2^5\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:132

約数の個数: 216

約数和(自身を含む): 242234496

約数和(自身を除く): 160816096

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 49, 50, 56, 62, 67, 70, 80, 98, 100, 112, 124, 134, 140, 155, 160, 175, 196, 200, 217, 224, 245, 248, 268, 280, 310, 335, 350, 392, 400, 434, 469, 490, 496, 536, 560, 620, 670, 700, 775, 784, 800, 868, 938, 980, 992, 1072, 1085, 1120, 1225, 1240, 1340, 1400, 1519, 1550, 1568, 1675, 1736, 1876, 1960, 2077, 2144, 2170, 2345, 2450, 2480, 2680, 2800, 3038, 3100, 3283, 3350, 3472, 3752, 3920, 4154, 4340, 4690, 4900, 4960, 5360, 5425, 5600, 6076, 6200, 6566, 6700, 6944, 7504, 7595, 7840, 8308, 8680, 9380, 9800, 10385, 10720, 10850, 11725, 12152, 12400, 13132, 13400, 14539, 15008, 15190, 16415, 16616, 17360, 18760, 19600, 20770, 21700, 23450, 24304, 24800, 26264, 26800, 29078, 30380, 32830, 33232, 34720, 37520, 37975, 39200, 41540, 43400, 46900, 48608, 51925, 52528, 53600, 58156, 60760, 65660, 66464, 72695, 75040, 75950, 82075, 83080, 86800, 93800, 101773, 103850, 105056, 116312, 121520, 131320, 145390, 151900, 164150, 166160, 173600, 187600, 203546, 207700, 232624, 243040, 262640, 290780, 303800, 328300, 332320, 363475, 375200, 407092, 415400, 465248, 508865, 525280, 581560, 607600, 656600, 726950, 814184, 830800, 1017730, 1163120, 1215200, 1313200, 1453900, 1628368, 1661600, 2035460, 2326240, 2544325, 2626400, 2907800, 3256736, 4070920, 5088650, 5815600, 8141840, 10177300, 11631200, 16283680, 20354600, 40709200, 81418400]

約数ペア:

[(1, 81418400), (2, 40709200), (4, 20354600), (5, 16283680), (7, 11631200), (8, 10177300), (10, 8141840), (14, 5815600), (16, 5088650), (20, 4070920), (25, 3256736), (28, 2907800), (31, 2626400), (32, 2544325), (35, 2326240), (40, 2035460), (49, 1661600), (50, 1628368), (56, 1453900), (62, 1313200), (67, 1215200), (70, 1163120), (80, 1017730), (98, 830800), (100, 814184), (112, 726950), (124, 656600), (134, 607600), (140, 581560), (155, 525280), (160, 508865), (175, 465248), (196, 415400), (200, 407092), (217, 375200), (224, 363475), (245, 332320), (248, 328300), (268, 303800), (280, 290780), (310, 262640), (335, 243040), (350, 232624), (392, 207700), (400, 203546), (434, 187600), (469, 173600), (490, 166160), (496, 164150), (536, 151900), (560, 145390), (620, 131320), (670, 121520), (700, 116312), (775, 105056), (784, 103850), (800, 101773), (868, 93800), (938, 86800), (980, 83080), (992, 82075), (1072, 75950), (1085, 75040), (1120, 72695), (1225, 66464), (1240, 65660), (1340, 60760), (1400, 58156), (1519, 53600), (1550, 52528), (1568, 51925), (1675, 48608), (1736, 46900), (1876, 43400), (1960, 41540), (2077, 39200), (2144, 37975), (2170, 37520), (2345, 34720), (2450, 33232), (2480, 32830), (2680, 30380), (2800, 29078), (3038, 26800), (3100, 26264), (3283, 24800), (3350, 24304), (3472, 23450), (3752, 21700), (3920, 20770), (4154, 19600), (4340, 18760), (4690, 17360), (4900, 16616), (4960, 16415), (5360, 15190), (5425, 15008), (5600, 14539), (6076, 13400), (6200, 13132), (6566, 12400), (6700, 12152), (6944, 11725), (7504, 10850), (7595, 10720), (7840, 10385), (8308, 9800), (8680, 9380)]