51781680

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:217

約数の個数: 200

約数和(自身を含む): 184189104

約数和(自身を除く): 132407424

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 61, 72, 80, 81, 90, 108, 120, 122, 131, 135, 144, 162, 180, 183, 216, 240, 244, 262, 270, 305, 324, 360, 366, 393, 405, 432, 488, 524, 540, 549, 610, 648, 655, 720, 732, 786, 810, 915, 976, 1048, 1080, 1098, 1179, 1220, 1296, 1310, 1464, 1572, 1620, 1647, 1830, 1965, 2096, 2160, 2196, 2358, 2440, 2620, 2745, 2928, 3144, 3240, 3294, 3537, 3660, 3930, 4392, 4716, 4880, 4941, 5240, 5490, 5895, 6288, 6480, 6588, 7074, 7320, 7860, 7991, 8235, 8784, 9432, 9882, 10480, 10611, 10980, 11790, 13176, 14148, 14640, 15720, 15982, 16470, 17685, 18864, 19764, 21222, 21960, 23580, 23973, 24705, 26352, 28296, 31440, 31964, 32940, 35370, 39528, 39955, 42444, 43920, 47160, 47946, 49410, 53055, 56592, 63928, 65880, 70740, 71919, 79056, 79910, 84888, 94320, 95892, 98820, 106110, 119865, 127856, 131760, 141480, 143838, 159820, 169776, 191784, 197640, 212220, 215757, 239730, 282960, 287676, 319640, 359595, 383568, 395280, 424440, 431514, 479460, 575352, 639280, 647271, 719190, 848880, 863028, 958920, 1078785, 1150704, 1294542, 1438380, 1726056, 1917840, 2157570, 2589084, 2876760, 3236355, 3452112, 4315140, 5178168, 5753520, 6472710, 8630280, 10356336, 12945420, 17260560, 25890840, 51781680]

約数ペア:

[(1, 51781680), (2, 25890840), (3, 17260560), (4, 12945420), (5, 10356336), (6, 8630280), (8, 6472710), (9, 5753520), (10, 5178168), (12, 4315140), (15, 3452112), (16, 3236355), (18, 2876760), (20, 2589084), (24, 2157570), (27, 1917840), (30, 1726056), (36, 1438380), (40, 1294542), (45, 1150704), (48, 1078785), (54, 958920), (60, 863028), (61, 848880), (72, 719190), (80, 647271), (81, 639280), (90, 575352), (108, 479460), (120, 431514), (122, 424440), (131, 395280), (135, 383568), (144, 359595), (162, 319640), (180, 287676), (183, 282960), (216, 239730), (240, 215757), (244, 212220), (262, 197640), (270, 191784), (305, 169776), (324, 159820), (360, 143838), (366, 141480), (393, 131760), (405, 127856), (432, 119865), (488, 106110), (524, 98820), (540, 95892), (549, 94320), (610, 84888), (648, 79910), (655, 79056), (720, 71919), (732, 70740), (786, 65880), (810, 63928), (915, 56592), (976, 53055), (1048, 49410), (1080, 47946), (1098, 47160), (1179, 43920), (1220, 42444), (1296, 39955), (1310, 39528), (1464, 35370), (1572, 32940), (1620, 31964), (1647, 31440), (1830, 28296), (1965, 26352), (2096, 24705), (2160, 23973), (2196, 23580), (2358, 21960), (2440, 21222), (2620, 19764), (2745, 18864), (2928, 17685), (3144, 16470), (3240, 15982), (3294, 15720), (3537, 14640), (3660, 14148), (3930, 13176), (4392, 11790), (4716, 10980), (4880, 10611), (4941, 10480), (5240, 9882), (5490, 9432), (5895, 8784), (6288, 8235), (6480, 7991), (6588, 7860), (7074, 7320)]