28028145

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{593}}^1$

素因数の和:761

約数の個数: 32

約数和(自身を含む): 47215872

約数和(自身を除く): 19187727

約数列:

[1, 3, 5, 15, 23, 69, 115, 137, 345, 411, 593, 685, 1779, 2055, 2965, 3151, 8895, 9453, 13639, 15755, 40917, 47265, 68195, 81241, 204585, 243723, 406205, 1218615, 1868543, 5605629, 9342715, 28028145]

約数ペア:

[(1, 28028145), (3, 9342715), (5, 5605629), (15, 1868543), (23, 1218615), (69, 406205), (115, 243723), (137, 204585), (345, 81241), (411, 68195), (593, 47265), (685, 40917), (1779, 15755), (2055, 13639), (2965, 9453), (3151, 8895)]