81207938

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{769}}^1$

素因数の和:1194

約数の個数: 32

約数和(自身を含む): 147100800

約数和(自身を除く): 65892862

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 397, 769, 794, 1538, 2779, 5383, 5558, 7543, 10766, 14611, 15086, 29222, 52801, 102277, 105602, 204554, 305293, 610586, 2137051, 4274102, 5800567, 11601134, 40603969, 81207938]

約数ペア:

[(1, 81207938), (2, 40603969), (7, 11601134), (14, 5800567), (19, 4274102), (38, 2137051), (133, 610586), (266, 305293), (397, 204554), (769, 105602), (794, 102277), (1538, 52801), (2779, 29222), (5383, 15086), (5558, 14611), (7543, 10766)]