20012944568

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{17581}}^1\times {\mathrm{7489}}^1$

素因数の和:25095

約数の個数: 32

約数和(自身を含む): 39506754000

約数和(自身を除く): 19493809432

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 7489, 14978, 17581, 29956, 35162, 59912, 70324, 140648, 142291, 284582, 334039, 569164, 668078, 1138328, 1336156, 2672312, 131664109, 263328218, 526656436, 1053312872, 2501618071, 5003236142, 10006472284, 20012944568]

約数ペア:

[(1, 20012944568), (2, 10006472284), (4, 5003236142), (8, 2501618071), (19, 1053312872), (38, 526656436), (76, 263328218), (152, 131664109), (7489, 2672312), (14978, 1336156), (17581, 1138328), (29956, 668078), (35162, 569164), (59912, 334039), (70324, 284582), (140648, 142291)]