640736327

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{63521}}^1$

素因数の和:63670

約数の個数: 16

約数和(自身を含む): 804950784

約数和(自身を除く): 164214457

約数列:

[1, 7, 11, 77, 131, 917, 1441, 10087, 63521, 444647, 698731, 4891117, 8321251, 58248757, 91533761, 640736327]

約数ペア:

[(1, 640736327), (7, 91533761), (11, 58248757), (77, 8321251), (131, 4891117), (917, 698731), (1441, 444647), (10087, 63521)]