28609280

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 81629184

約数和(自身を除く): 53019904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 103, 112, 124, 128, 140, 155, 160, 206, 217, 224, 248, 256, 280, 310, 320, 412, 434, 448, 496, 515, 560, 620, 640, 721, 824, 868, 896, 992, 1030, 1085, 1120, 1240, 1280, 1442, 1648, 1736, 1792, 1984, 2060, 2170, 2240, 2480, 2884, 3193, 3296, 3472, 3605, 3968, 4120, 4340, 4480, 4960, 5768, 6386, 6592, 6944, 7210, 7936, 8240, 8680, 8960, 9920, 11536, 12772, 13184, 13888, 14420, 15965, 16480, 17360, 19840, 22351, 23072, 25544, 26368, 27776, 28840, 31930, 32960, 34720, 39680, 44702, 46144, 51088, 55552, 57680, 63860, 65920, 69440, 89404, 92288, 102176, 111755, 115360, 127720, 131840, 138880, 178808, 184576, 204352, 223510, 230720, 255440, 277760, 357616, 408704, 447020, 461440, 510880, 715232, 817408, 894040, 922880, 1021760, 1430464, 1788080, 2043520, 2860928, 3576160, 4087040, 5721856, 7152320, 14304640, 28609280]

約数ペア:

[(1, 28609280), (2, 14304640), (4, 7152320), (5, 5721856), (7, 4087040), (8, 3576160), (10, 2860928), (14, 2043520), (16, 1788080), (20, 1430464), (28, 1021760), (31, 922880), (32, 894040), (35, 817408), (40, 715232), (56, 510880), (62, 461440), (64, 447020), (70, 408704), (80, 357616), (103, 277760), (112, 255440), (124, 230720), (128, 223510), (140, 204352), (155, 184576), (160, 178808), (206, 138880), (217, 131840), (224, 127720), (248, 115360), (256, 111755), (280, 102176), (310, 92288), (320, 89404), (412, 69440), (434, 65920), (448, 63860), (496, 57680), (515, 55552), (560, 51088), (620, 46144), (640, 44702), (721, 39680), (824, 34720), (868, 32960), (896, 31930), (992, 28840), (1030, 27776), (1085, 26368), (1120, 25544), (1240, 23072), (1280, 22351), (1442, 19840), (1648, 17360), (1736, 16480), (1792, 15965), (1984, 14420), (2060, 13888), (2170, 13184), (2240, 12772), (2480, 11536), (2884, 9920), (3193, 8960), (3296, 8680), (3472, 8240), (3605, 7936), (3968, 7210), (4120, 6944), (4340, 6592), (4480, 6386), (4960, 5768)]