20790288

素因数分解:

$2^4\times 3^2\times {\mathrm{353}}^1\times {\mathrm{409}}^1$

素因数の和:776

約数の個数: 60

約数和(自身を含む): 58491420

約数和(自身を除く): 37701132

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 353, 409, 706, 818, 1059, 1227, 1412, 1636, 2118, 2454, 2824, 3177, 3272, 3681, 4236, 4908, 5648, 6354, 6544, 7362, 8472, 9816, 12708, 14724, 16944, 19632, 25416, 29448, 50832, 58896, 144377, 288754, 433131, 577508, 866262, 1155016, 1299393, 1732524, 2310032, 2598786, 3465048, 5197572, 6930096, 10395144, 20790288]

約数ペア:

[(1, 20790288), (2, 10395144), (3, 6930096), (4, 5197572), (6, 3465048), (8, 2598786), (9, 2310032), (12, 1732524), (16, 1299393), (18, 1155016), (24, 866262), (36, 577508), (48, 433131), (72, 288754), (144, 144377), (353, 58896), (409, 50832), (706, 29448), (818, 25416), (1059, 19632), (1227, 16944), (1412, 14724), (1636, 12708), (2118, 9816), (2454, 8472), (2824, 7362), (3177, 6544), (3272, 6354), (3681, 5648), (4236, 4908)]