253228725

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{197}}^2$

素因数の和:439

約数の個数: 54

約数和(自身を含む): 471594630

約数和(自身を除く): 218365905

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 197, 225, 261, 435, 591, 725, 985, 1305, 1773, 2175, 2955, 4925, 5713, 6525, 8865, 14775, 17139, 28565, 38809, 44325, 51417, 85695, 116427, 142825, 194045, 257085, 349281, 428475, 582135, 970225, 1125461, 1285425, 1746405, 2910675, 3376383, 5627305, 8732025, 10129149, 16881915, 28136525, 50645745, 84409575, 253228725]

約数ペア:

[(1, 253228725), (3, 84409575), (5, 50645745), (9, 28136525), (15, 16881915), (25, 10129149), (29, 8732025), (45, 5627305), (75, 3376383), (87, 2910675), (145, 1746405), (197, 1285425), (225, 1125461), (261, 970225), (435, 582135), (591, 428475), (725, 349281), (985, 257085), (1305, 194045), (1773, 142825), (2175, 116427), (2955, 85695), (4925, 51417), (5713, 44325), (6525, 38809), (8865, 28565), (14775, 17139)]