28505260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 77565600

約数和(自身を除く): 49060340

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 29, 34, 35, 49, 58, 59, 68, 70, 85, 98, 116, 118, 119, 140, 145, 170, 196, 203, 236, 238, 245, 290, 295, 340, 406, 413, 476, 490, 493, 580, 590, 595, 812, 826, 833, 980, 986, 1003, 1015, 1180, 1190, 1421, 1652, 1666, 1711, 1972, 2006, 2030, 2065, 2380, 2465, 2842, 2891, 3332, 3422, 3451, 4012, 4060, 4130, 4165, 4930, 5015, 5684, 5782, 6844, 6902, 7021, 7105, 8260, 8330, 8555, 9860, 10030, 11564, 11977, 13804, 14042, 14210, 14455, 16660, 17110, 17255, 20060, 23954, 24157, 28084, 28420, 28910, 29087, 34220, 34510, 35105, 47908, 48314, 49147, 57820, 58174, 59885, 69020, 70210, 83839, 96628, 98294, 116348, 119770, 120785, 140420, 145435, 167678, 196588, 203609, 239540, 241570, 245735, 290870, 335356, 407218, 419195, 483140, 491470, 581740, 814436, 838390, 982940, 1018045, 1425263, 1676780, 2036090, 2850526, 4072180, 5701052, 7126315, 14252630, 28505260]

約数ペア:

[(1, 28505260), (2, 14252630), (4, 7126315), (5, 5701052), (7, 4072180), (10, 2850526), (14, 2036090), (17, 1676780), (20, 1425263), (28, 1018045), (29, 982940), (34, 838390), (35, 814436), (49, 581740), (58, 491470), (59, 483140), (68, 419195), (70, 407218), (85, 335356), (98, 290870), (116, 245735), (118, 241570), (119, 239540), (140, 203609), (145, 196588), (170, 167678), (196, 145435), (203, 140420), (236, 120785), (238, 119770), (245, 116348), (290, 98294), (295, 96628), (340, 83839), (406, 70210), (413, 69020), (476, 59885), (490, 58174), (493, 57820), (580, 49147), (590, 48314), (595, 47908), (812, 35105), (826, 34510), (833, 34220), (980, 29087), (986, 28910), (1003, 28420), (1015, 28084), (1180, 24157), (1190, 23954), (1421, 20060), (1652, 17255), (1666, 17110), (1711, 16660), (1972, 14455), (2006, 14210), (2030, 14042), (2065, 13804), (2380, 11977), (2465, 11564), (2842, 10030), (2891, 9860), (3332, 8555), (3422, 8330), (3451, 8260), (4012, 7105), (4060, 7021), (4130, 6902), (4165, 6844), (4930, 5782), (5015, 5684)]