161651625

素因数分解:

$3^1\times 5^3\times {\mathrm{503}}^1\times {\mathrm{857}}^1$

素因数の和:1378

約数の個数: 32

約数和(自身を含む): 269837568

約数和(自身を除く): 108185943

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 503, 857, 1509, 2515, 2571, 4285, 7545, 12575, 12855, 21425, 37725, 62875, 64275, 107125, 188625, 321375, 431071, 1293213, 2155355, 6466065, 10776775, 32330325, 53883875, 161651625]

約数ペア:

[(1, 161651625), (3, 53883875), (5, 32330325), (15, 10776775), (25, 6466065), (75, 2155355), (125, 1293213), (375, 431071), (503, 321375), (857, 188625), (1509, 107125), (2515, 64275), (2571, 62875), (4285, 37725), (7545, 21425), (12575, 12855)]