81049275

素因数分解:

$3^3\times 5^2\times {\mathrm{167}}^1\times {\mathrm{719}}^1$

素因数の和:905

約数の個数: 48

約数和(自身を含む): 149990400

約数和(自身を除く): 68941125

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 167, 225, 501, 675, 719, 835, 1503, 2157, 2505, 3595, 4175, 4509, 6471, 7515, 10785, 12525, 17975, 19413, 22545, 32355, 37575, 53925, 97065, 112725, 120073, 161775, 360219, 485325, 600365, 1080657, 1801095, 3001825, 3241971, 5403285, 9005475, 16209855, 27016425, 81049275]

約数ペア:

[(1, 81049275), (3, 27016425), (5, 16209855), (9, 9005475), (15, 5403285), (25, 3241971), (27, 3001825), (45, 1801095), (75, 1080657), (135, 600365), (167, 485325), (225, 360219), (501, 161775), (675, 120073), (719, 112725), (835, 97065), (1503, 53925), (2157, 37575), (2505, 32355), (3595, 22545), (4175, 19413), (4509, 17975), (6471, 12525), (7515, 10785)]