81948625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{557}}^1$

素因数の和:690

約数の個数: 32

約数和(自身を含む): 112814208

約数和(自身を除く): 30865583

約数列:

[1, 5, 11, 25, 55, 107, 125, 275, 535, 557, 1177, 1375, 2675, 2785, 5885, 6127, 13375, 13925, 29425, 30635, 59599, 69625, 147125, 153175, 297995, 655589, 765875, 1489975, 3277945, 7449875, 16389725, 81948625]

約数ペア:

[(1, 81948625), (5, 16389725), (11, 7449875), (25, 3277945), (55, 1489975), (107, 765875), (125, 655589), (275, 297995), (535, 153175), (557, 147125), (1177, 69625), (1375, 59599), (2675, 30635), (2785, 29425), (5885, 13925), (6127, 13375)]