28555240

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{857}}^1$

素因数の和:899

約数の個数: 96

約数和(自身を含む): 79227720

約数和(自身を除く): 50672480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 85, 98, 119, 136, 140, 170, 196, 238, 245, 280, 340, 392, 476, 490, 595, 680, 833, 857, 952, 980, 1190, 1666, 1714, 1960, 2380, 3332, 3428, 4165, 4285, 4760, 5999, 6664, 6856, 8330, 8570, 11998, 14569, 16660, 17140, 23996, 29138, 29995, 33320, 34280, 41993, 47992, 58276, 59990, 72845, 83986, 101983, 116552, 119980, 145690, 167972, 203966, 209965, 239960, 291380, 335944, 407932, 419930, 509915, 582760, 713881, 815864, 839860, 1019830, 1427762, 1679720, 2039660, 2855524, 3569405, 4079320, 5711048, 7138810, 14277620, 28555240]

約数ペア:

[(1, 28555240), (2, 14277620), (4, 7138810), (5, 5711048), (7, 4079320), (8, 3569405), (10, 2855524), (14, 2039660), (17, 1679720), (20, 1427762), (28, 1019830), (34, 839860), (35, 815864), (40, 713881), (49, 582760), (56, 509915), (68, 419930), (70, 407932), (85, 335944), (98, 291380), (119, 239960), (136, 209965), (140, 203966), (170, 167972), (196, 145690), (238, 119980), (245, 116552), (280, 101983), (340, 83986), (392, 72845), (476, 59990), (490, 58276), (595, 47992), (680, 41993), (833, 34280), (857, 33320), (952, 29995), (980, 29138), (1190, 23996), (1666, 17140), (1714, 16660), (1960, 14569), (2380, 11998), (3332, 8570), (3428, 8330), (4165, 6856), (4285, 6664), (4760, 5999)]