640054877

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{82301}}^1$

素因数の和:82420

約数の個数: 16

約数和(自身を含む): 805901184

約数和(自身を除く): 165846307

約数列:

[1, 7, 11, 77, 101, 707, 1111, 7777, 82301, 576107, 905311, 6337177, 8312401, 58186807, 91436411, 640054877]

約数ペア:

[(1, 640054877), (7, 91436411), (11, 58186807), (77, 8312401), (101, 6337177), (707, 905311), (1111, 576107), (7777, 82301)]