87781460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10891}}^1$

素因数の和:10944

約数の個数: 48

約数和(自身を含む): 204943872

約数和(自身を除く): 117162412

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 10891, 21782, 43564, 54455, 108910, 141583, 217820, 283166, 337621, 566332, 675242, 707915, 1350484, 1415830, 1688105, 2831660, 3376210, 4389073, 6752420, 8778146, 17556292, 21945365, 43890730, 87781460]

約数ペア:

[(1, 87781460), (2, 43890730), (4, 21945365), (5, 17556292), (10, 8778146), (13, 6752420), (20, 4389073), (26, 3376210), (31, 2831660), (52, 1688105), (62, 1415830), (65, 1350484), (124, 707915), (130, 675242), (155, 566332), (260, 337621), (310, 283166), (403, 217820), (620, 141583), (806, 108910), (1612, 54455), (2015, 43564), (4030, 21782), (8060, 10891)]