821405930

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{617}}^1\times {\mathrm{1987}}^1$

素因数の和:2678

約数の個数: 32

約数和(自身を含む): 1503786816

約数和(自身を除く): 682380886

約数列:

[1, 2, 5, 10, 67, 134, 335, 617, 670, 1234, 1987, 3085, 3974, 6170, 9935, 19870, 41339, 82678, 133129, 206695, 266258, 413390, 665645, 1225979, 1331290, 2451958, 6129895, 12259790, 82140593, 164281186, 410702965, 821405930]

約数ペア:

[(1, 821405930), (2, 410702965), (5, 164281186), (10, 82140593), (67, 12259790), (134, 6129895), (335, 2451958), (617, 1331290), (670, 1225979), (1234, 665645), (1987, 413390), (3085, 266258), (3974, 206695), (6170, 133129), (9935, 82678), (19870, 41339)]