20862990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{3929}}^1$

素因数の和:4001

約数の個数: 48

約数和(自身を含む): 55177200

約数和(自身を除く): 34314210

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 59, 90, 118, 177, 295, 354, 531, 590, 885, 1062, 1770, 2655, 3929, 5310, 7858, 11787, 19645, 23574, 35361, 39290, 58935, 70722, 117870, 176805, 231811, 353610, 463622, 695433, 1159055, 1390866, 2086299, 2318110, 3477165, 4172598, 6954330, 10431495, 20862990]

約数ペア:

[(1, 20862990), (2, 10431495), (3, 6954330), (5, 4172598), (6, 3477165), (9, 2318110), (10, 2086299), (15, 1390866), (18, 1159055), (30, 695433), (45, 463622), (59, 353610), (90, 231811), (118, 176805), (177, 117870), (295, 70722), (354, 58935), (531, 39290), (590, 35361), (885, 23574), (1062, 19645), (1770, 11787), (2655, 7858), (3929, 5310)]