81278470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89317}}^1$

素因数の和:89344

約数の個数: 32

約数和(自身を含む): 180065088

約数和(自身を除く): 98786618

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 89317, 178634, 446585, 625219, 893170, 1161121, 1250438, 2322242, 3126095, 5805605, 6252190, 8127847, 11611210, 16255694, 40639235, 81278470]

約数ペア:

[(1, 81278470), (2, 40639235), (5, 16255694), (7, 11611210), (10, 8127847), (13, 6252190), (14, 5805605), (26, 3126095), (35, 2322242), (65, 1250438), (70, 1161121), (91, 893170), (130, 625219), (182, 446585), (455, 178634), (910, 89317)]