28563075

素因数分解:

$3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 54395328

約数和(自身を除く): 25832253

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 47, 73, 75, 111, 141, 185, 219, 225, 235, 333, 365, 423, 555, 657, 705, 925, 1095, 1175, 1665, 1739, 1825, 2115, 2701, 2775, 3285, 3431, 3525, 5217, 5475, 8103, 8325, 8695, 10293, 10575, 13505, 15651, 16425, 17155, 24309, 26085, 30879, 40515, 43475, 51465, 67525, 78255, 85775, 121545, 126947, 130425, 154395, 202575, 257325, 380841, 391275, 607725, 634735, 771975, 1142523, 1904205, 3173675, 5712615, 9521025, 28563075]

約数ペア:

[(1, 28563075), (3, 9521025), (5, 5712615), (9, 3173675), (15, 1904205), (25, 1142523), (37, 771975), (45, 634735), (47, 607725), (73, 391275), (75, 380841), (111, 257325), (141, 202575), (185, 154395), (219, 130425), (225, 126947), (235, 121545), (333, 85775), (365, 78255), (423, 67525), (555, 51465), (657, 43475), (705, 40515), (925, 30879), (1095, 26085), (1175, 24309), (1665, 17155), (1739, 16425), (1825, 15651), (2115, 13505), (2701, 10575), (2775, 10293), (3285, 8695), (3431, 8325), (3525, 8103), (5217, 5475)]