320434840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{728261}}^1$

素因数の和:728283

約数の個数: 32

約数和(自身を含む): 786522960

約数和(自身を除く): 466088120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 728261, 1456522, 2913044, 3641305, 5826088, 7282610, 8010871, 14565220, 16021742, 29130440, 32043484, 40054355, 64086968, 80108710, 160217420, 320434840]

約数ペア:

[(1, 320434840), (2, 160217420), (4, 80108710), (5, 64086968), (8, 40054355), (10, 32043484), (11, 29130440), (20, 16021742), (22, 14565220), (40, 8010871), (44, 7282610), (55, 5826088), (88, 3641305), (110, 2913044), (220, 1456522), (440, 728261)]