28378328

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{829}}^1$

素因数の和:1235

約数の個数: 32

約数和(自身を含む): 58266000

約数和(自身を除く): 29887672

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 389, 778, 829, 1556, 1658, 3112, 3316, 4279, 6632, 8558, 9119, 17116, 18238, 34232, 36476, 72952, 322481, 644962, 1289924, 2579848, 3547291, 7094582, 14189164, 28378328]

約数ペア:

[(1, 28378328), (2, 14189164), (4, 7094582), (8, 3547291), (11, 2579848), (22, 1289924), (44, 644962), (88, 322481), (389, 72952), (778, 36476), (829, 34232), (1556, 18238), (1658, 17116), (3112, 9119), (3316, 8558), (4279, 6632)]