20579520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:147

約数の個数: 224

約数和(自身を含む): 75273408

約数和(自身を除く): 54693888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 20, 24, 26, 30, 32, 34, 39, 40, 48, 51, 52, 60, 64, 65, 68, 78, 80, 85, 96, 97, 102, 104, 120, 130, 136, 156, 160, 170, 192, 194, 195, 204, 208, 221, 240, 255, 260, 272, 291, 312, 320, 340, 388, 390, 408, 416, 442, 480, 485, 510, 520, 544, 582, 624, 663, 680, 776, 780, 816, 832, 884, 960, 970, 1020, 1040, 1088, 1105, 1164, 1248, 1261, 1326, 1360, 1455, 1552, 1560, 1632, 1649, 1768, 1940, 2040, 2080, 2210, 2328, 2496, 2522, 2652, 2720, 2910, 3104, 3120, 3264, 3298, 3315, 3536, 3783, 3880, 4080, 4160, 4420, 4656, 4947, 5044, 5304, 5440, 5820, 6208, 6240, 6305, 6596, 6630, 7072, 7566, 7760, 8160, 8245, 8840, 9312, 9894, 10088, 10608, 11640, 12480, 12610, 13192, 13260, 14144, 15132, 15520, 16320, 16490, 17680, 18624, 18915, 19788, 20176, 21216, 21437, 23280, 24735, 25220, 26384, 26520, 30264, 31040, 32980, 35360, 37830, 39576, 40352, 42432, 42874, 46560, 49470, 50440, 52768, 53040, 60528, 64311, 65960, 70720, 75660, 79152, 80704, 85748, 93120, 98940, 100880, 105536, 106080, 107185, 121056, 128622, 131920, 151320, 158304, 171496, 197880, 201760, 212160, 214370, 242112, 257244, 263840, 302640, 316608, 321555, 342992, 395760, 403520, 428740, 514488, 527680, 605280, 643110, 685984, 791520, 857480, 1028976, 1210560, 1286220, 1371968, 1583040, 1714960, 2057952, 2572440, 3429920, 4115904, 5144880, 6859840, 10289760, 20579520]

約数ペア:

[(1, 20579520), (2, 10289760), (3, 6859840), (4, 5144880), (5, 4115904), (6, 3429920), (8, 2572440), (10, 2057952), (12, 1714960), (13, 1583040), (15, 1371968), (16, 1286220), (17, 1210560), (20, 1028976), (24, 857480), (26, 791520), (30, 685984), (32, 643110), (34, 605280), (39, 527680), (40, 514488), (48, 428740), (51, 403520), (52, 395760), (60, 342992), (64, 321555), (65, 316608), (68, 302640), (78, 263840), (80, 257244), (85, 242112), (96, 214370), (97, 212160), (102, 201760), (104, 197880), (120, 171496), (130, 158304), (136, 151320), (156, 131920), (160, 128622), (170, 121056), (192, 107185), (194, 106080), (195, 105536), (204, 100880), (208, 98940), (221, 93120), (240, 85748), (255, 80704), (260, 79152), (272, 75660), (291, 70720), (312, 65960), (320, 64311), (340, 60528), (388, 53040), (390, 52768), (408, 50440), (416, 49470), (442, 46560), (480, 42874), (485, 42432), (510, 40352), (520, 39576), (544, 37830), (582, 35360), (624, 32980), (663, 31040), (680, 30264), (776, 26520), (780, 26384), (816, 25220), (832, 24735), (884, 23280), (960, 21437), (970, 21216), (1020, 20176), (1040, 19788), (1088, 18915), (1105, 18624), (1164, 17680), (1248, 16490), (1261, 16320), (1326, 15520), (1360, 15132), (1455, 14144), (1552, 13260), (1560, 13192), (1632, 12610), (1649, 12480), (1768, 11640), (1940, 10608), (2040, 10088), (2080, 9894), (2210, 9312), (2328, 8840), (2496, 8245), (2522, 8160), (2652, 7760), (2720, 7566), (2910, 7072), (3104, 6630), (3120, 6596), (3264, 6305), (3298, 6240), (3315, 6208), (3536, 5820), (3783, 5440), (3880, 5304), (4080, 5044), (4160, 4947), (4420, 4656)]