28686375

素因数分解:

$3^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{593}}^1$

素因数の和:657

約数の個数: 48

約数和(自身を含む): 53003808

約数和(自身を除く): 24317433

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 125, 129, 215, 225, 375, 387, 593, 645, 1075, 1125, 1779, 1935, 2965, 3225, 5337, 5375, 8895, 9675, 14825, 16125, 25499, 26685, 44475, 48375, 74125, 76497, 127495, 133425, 222375, 229491, 382485, 637475, 667125, 1147455, 1912425, 3187375, 5737275, 9562125, 28686375]

約数ペア:

[(1, 28686375), (3, 9562125), (5, 5737275), (9, 3187375), (15, 1912425), (25, 1147455), (43, 667125), (45, 637475), (75, 382485), (125, 229491), (129, 222375), (215, 133425), (225, 127495), (375, 76497), (387, 74125), (593, 48375), (645, 44475), (1075, 26685), (1125, 25499), (1779, 16125), (1935, 14825), (2965, 9675), (3225, 8895), (5337, 5375)]