640151281

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{63463}}^1$

素因数の和:63612

約数の個数: 16

約数和(自身を含む): 804215808

約数和(自身を除く): 164064527

約数列:

[1, 7, 11, 77, 131, 917, 1441, 10087, 63463, 444241, 698093, 4886651, 8313653, 58195571, 91450183, 640151281]

約数ペア:

[(1, 640151281), (7, 91450183), (11, 58195571), (77, 8313653), (131, 4886651), (917, 698093), (1441, 444241), (10087, 63463)]