81402210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{12739}}^1$

素因数の和:12823

約数の個数: 48

約数和(自身を含む): 214643520

約数和(自身を除く): 133241310

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 6390, 12739, 25478, 38217, 63695, 76434, 114651, 127390, 191085, 229302, 382170, 573255, 904469, 1146510, 1808938, 2713407, 4522345, 5426814, 8140221, 9044690, 13567035, 16280442, 27134070, 40701105, 81402210]

約数ペア:

[(1, 81402210), (2, 40701105), (3, 27134070), (5, 16280442), (6, 13567035), (9, 9044690), (10, 8140221), (15, 5426814), (18, 4522345), (30, 2713407), (45, 1808938), (71, 1146510), (90, 904469), (142, 573255), (213, 382170), (355, 229302), (426, 191085), (639, 127390), (710, 114651), (1065, 76434), (1278, 63695), (2130, 38217), (3195, 25478), (6390, 12739)]