2805356720

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{139709}}^1$

素因数の和:139973

約数の個数: 40

約数和(自身を含む): 6548487120

約数和(自身を除く): 3743130400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 2008, 2510, 4016, 5020, 10040, 20080, 139709, 279418, 558836, 698545, 1117672, 1397090, 2235344, 2794180, 5588360, 11176720, 35066959, 70133918, 140267836, 175334795, 280535672, 350669590, 561071344, 701339180, 1402678360, 2805356720]

約数ペア:

[(1, 2805356720), (2, 1402678360), (4, 701339180), (5, 561071344), (8, 350669590), (10, 280535672), (16, 175334795), (20, 140267836), (40, 70133918), (80, 35066959), (251, 11176720), (502, 5588360), (1004, 2794180), (1255, 2235344), (2008, 1397090), (2510, 1117672), (4016, 698545), (5020, 558836), (10040, 279418), (20080, 139709)]