28493955

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{313}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 60152352

約数和(自身を除く): 31658397

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 289, 313, 315, 357, 595, 765, 867, 939, 1071, 1445, 1565, 1785, 2023, 2191, 2601, 2817, 4335, 4695, 5321, 5355, 6069, 6573, 10115, 10955, 13005, 14085, 15963, 18207, 19719, 26605, 30345, 32865, 37247, 47889, 79815, 90457, 91035, 98595, 111741, 186235, 239445, 271371, 335223, 452285, 558705, 633199, 814113, 1356855, 1676115, 1899597, 3165995, 4070565, 5698791, 9497985, 28493955]

約数ペア:

[(1, 28493955), (3, 9497985), (5, 5698791), (7, 4070565), (9, 3165995), (15, 1899597), (17, 1676115), (21, 1356855), (35, 814113), (45, 633199), (51, 558705), (63, 452285), (85, 335223), (105, 271371), (119, 239445), (153, 186235), (255, 111741), (289, 98595), (313, 91035), (315, 90457), (357, 79815), (595, 47889), (765, 37247), (867, 32865), (939, 30345), (1071, 26605), (1445, 19719), (1565, 18207), (1785, 15963), (2023, 14085), (2191, 13005), (2601, 10955), (2817, 10115), (4335, 6573), (4695, 6069), (5321, 5355)]