661188385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{1399}}^1$

素因数の和:2089

約数の個数: 32

約数和(自身を含む): 934214400

約数和(自身を除く): 273026015

約数列:

[1, 5, 11, 13, 55, 65, 143, 661, 715, 1399, 3305, 6995, 7271, 8593, 15389, 18187, 36355, 42965, 76945, 90935, 94523, 200057, 472615, 924739, 1000285, 4623695, 10172129, 12021607, 50860645, 60108035, 132237677, 661188385]

約数ペア:

[(1, 661188385), (5, 132237677), (11, 60108035), (13, 50860645), (55, 12021607), (65, 10172129), (143, 4623695), (661, 1000285), (715, 924739), (1399, 472615), (3305, 200057), (6995, 94523), (7271, 90935), (8593, 76945), (15389, 42965), (18187, 36355)]