28440075

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{16487}}^1$

素因数の和:16523

約数の個数: 24

約数和(自身を含む): 49068288

約数和(自身を除く): 20628213

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 16487, 49461, 82435, 247305, 379201, 412175, 1137603, 1236525, 1896005, 5688015, 9480025, 28440075]

約数ペア:

[(1, 28440075), (3, 9480025), (5, 5688015), (15, 1896005), (23, 1236525), (25, 1137603), (69, 412175), (75, 379201), (115, 247305), (345, 82435), (575, 49461), (1725, 16487)]