28785075

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:125

約数の個数: 96

約数和(自身を含む): 56996352

約数和(自身を除く): 28211277

約数列:

[1, 3, 5, 11, 15, 23, 25, 33, 37, 41, 55, 69, 75, 111, 115, 123, 165, 185, 205, 253, 275, 345, 407, 451, 555, 575, 615, 759, 825, 851, 925, 943, 1025, 1221, 1265, 1353, 1517, 1725, 2035, 2255, 2553, 2775, 2829, 3075, 3795, 4255, 4551, 4715, 6105, 6325, 6765, 7585, 9361, 10175, 10373, 11275, 12765, 14145, 16687, 18975, 21275, 22755, 23575, 28083, 30525, 31119, 33825, 34891, 37925, 46805, 50061, 51865, 63825, 70725, 83435, 104673, 113775, 140415, 155595, 174455, 234025, 250305, 259325, 383801, 417175, 523365, 702075, 777975, 872275, 1151403, 1251525, 1919005, 2616825, 5757015, 9595025, 28785075]

約数ペア:

[(1, 28785075), (3, 9595025), (5, 5757015), (11, 2616825), (15, 1919005), (23, 1251525), (25, 1151403), (33, 872275), (37, 777975), (41, 702075), (55, 523365), (69, 417175), (75, 383801), (111, 259325), (115, 250305), (123, 234025), (165, 174455), (185, 155595), (205, 140415), (253, 113775), (275, 104673), (345, 83435), (407, 70725), (451, 63825), (555, 51865), (575, 50061), (615, 46805), (759, 37925), (825, 34891), (851, 33825), (925, 31119), (943, 30525), (1025, 28083), (1221, 23575), (1265, 22755), (1353, 21275), (1517, 18975), (1725, 16687), (2035, 14145), (2255, 12765), (2553, 11275), (2775, 10373), (2829, 10175), (3075, 9361), (3795, 7585), (4255, 6765), (4551, 6325), (4715, 6105)]