12821220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{23743}}^1$

素因数の和:23761

約数の個数: 48

約数和(自身を含む): 39889920

約数和(自身を除く): 27068700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 23743, 47486, 71229, 94972, 118715, 142458, 213687, 237430, 284916, 356145, 427374, 474860, 641061, 712290, 854748, 1068435, 1282122, 1424580, 2136870, 2564244, 3205305, 4273740, 6410610, 12821220]

約数ペア:

[(1, 12821220), (2, 6410610), (3, 4273740), (4, 3205305), (5, 2564244), (6, 2136870), (9, 1424580), (10, 1282122), (12, 1068435), (15, 854748), (18, 712290), (20, 641061), (27, 474860), (30, 427374), (36, 356145), (45, 284916), (54, 237430), (60, 213687), (90, 142458), (108, 118715), (135, 94972), (180, 71229), (270, 47486), (540, 23743)]