81555215

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 116619264

約数和(自身を除く): 35064049

約数列:

[1, 5, 7, 35, 37, 71, 185, 259, 355, 497, 887, 1295, 2485, 2627, 4435, 6209, 13135, 18389, 31045, 32819, 62977, 91945, 164095, 229733, 314885, 440839, 1148665, 2204195, 2330149, 11650745, 16311043, 81555215]

約数ペア:

[(1, 81555215), (5, 16311043), (7, 11650745), (35, 2330149), (37, 2204195), (71, 1148665), (185, 440839), (259, 314885), (355, 229733), (497, 164095), (887, 91945), (1295, 62977), (2485, 32819), (2627, 31045), (4435, 18389), (6209, 13135)]