80774840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{65141}}^1$

素因数の和:65183

約数の個数: 32

約数和(自身を含む): 187608960

約数和(自身を除く): 106834120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 65141, 130282, 260564, 325705, 521128, 651410, 1302820, 2019371, 2605640, 4038742, 8077484, 10096855, 16154968, 20193710, 40387420, 80774840]

約数ペア:

[(1, 80774840), (2, 40387420), (4, 20193710), (5, 16154968), (8, 10096855), (10, 8077484), (20, 4038742), (31, 2605640), (40, 2019371), (62, 1302820), (124, 651410), (155, 521128), (248, 325705), (310, 260564), (620, 130282), (1240, 65141)]