81671220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{151243}}^1$

素因数の和:151261

約数の個数: 48

約数和(自身を含む): 254089920

約数和(自身を除く): 172418700

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, 151243, 302486, 453729, 604972, 756215, 907458, 1361187, 1512430, 1814916, 2268645, 2722374, 3024860, 4083561, 4537290, 5444748, 6805935, 8167122, 9074580, 13611870, 16334244, 20417805, 27223740, 40835610, 81671220]

約数ペア:

[(1, 81671220), (2, 40835610), (3, 27223740), (4, 20417805), (5, 16334244), (6, 13611870), (9, 9074580), (10, 8167122), (12, 6805935), (15, 5444748), (18, 4537290), (20, 4083561), (27, 3024860), (30, 2722374), (36, 2268645), (45, 1814916), (54, 1512430), (60, 1361187), (90, 907458), (108, 756215), (135, 604972), (180, 453729), (270, 302486), (540, 151243)]