28137760

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:163

約数の個数: 144

約数和(自身を含む): 80237304

約数和(自身を除く): 52099544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 49, 56, 70, 74, 80, 97, 98, 112, 140, 148, 160, 185, 194, 196, 224, 245, 259, 280, 296, 370, 388, 392, 485, 490, 518, 560, 592, 679, 740, 776, 784, 970, 980, 1036, 1120, 1184, 1295, 1358, 1480, 1552, 1568, 1813, 1940, 1960, 2072, 2590, 2716, 2960, 3104, 3395, 3589, 3626, 3880, 3920, 4144, 4753, 5180, 5432, 5920, 6790, 7178, 7252, 7760, 7840, 8288, 9065, 9506, 10360, 10864, 13580, 14356, 14504, 15520, 17945, 18130, 19012, 20720, 21728, 23765, 25123, 27160, 28712, 29008, 35890, 36260, 38024, 41440, 47530, 50246, 54320, 57424, 58016, 71780, 72520, 76048, 95060, 100492, 108640, 114848, 125615, 143560, 145040, 152096, 175861, 190120, 200984, 251230, 287120, 290080, 351722, 380240, 401968, 502460, 574240, 703444, 760480, 803936, 879305, 1004920, 1406888, 1758610, 2009840, 2813776, 3517220, 4019680, 5627552, 7034440, 14068880, 28137760]

約数ペア:

[(1, 28137760), (2, 14068880), (4, 7034440), (5, 5627552), (7, 4019680), (8, 3517220), (10, 2813776), (14, 2009840), (16, 1758610), (20, 1406888), (28, 1004920), (32, 879305), (35, 803936), (37, 760480), (40, 703444), (49, 574240), (56, 502460), (70, 401968), (74, 380240), (80, 351722), (97, 290080), (98, 287120), (112, 251230), (140, 200984), (148, 190120), (160, 175861), (185, 152096), (194, 145040), (196, 143560), (224, 125615), (245, 114848), (259, 108640), (280, 100492), (296, 95060), (370, 76048), (388, 72520), (392, 71780), (485, 58016), (490, 57424), (518, 54320), (560, 50246), (592, 47530), (679, 41440), (740, 38024), (776, 36260), (784, 35890), (970, 29008), (980, 28712), (1036, 27160), (1120, 25123), (1184, 23765), (1295, 21728), (1358, 20720), (1480, 19012), (1552, 18130), (1568, 17945), (1813, 15520), (1940, 14504), (1960, 14356), (2072, 13580), (2590, 10864), (2716, 10360), (2960, 9506), (3104, 9065), (3395, 8288), (3589, 7840), (3626, 7760), (3880, 7252), (3920, 7178), (4144, 6790), (4753, 5920), (5180, 5432)]