1991810015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{22817}}^1$

素因数の和:22931

約数の個数: 32

約数和(自身を含む): 2760065280

約数和(自身を除く): 768255265

約数列:

[1, 5, 13, 17, 65, 79, 85, 221, 395, 1027, 1105, 1343, 5135, 6715, 17459, 22817, 87295, 114085, 296621, 387889, 1483105, 1802543, 1939445, 5042557, 9012715, 23433059, 25212785, 30643231, 117165295, 153216155, 398362003, 1991810015]

約数ペア:

[(1, 1991810015), (5, 398362003), (13, 153216155), (17, 117165295), (65, 30643231), (79, 25212785), (85, 23433059), (221, 9012715), (395, 5042557), (1027, 1939445), (1105, 1802543), (1343, 1483105), (5135, 387889), (6715, 296621), (17459, 114085), (22817, 87295)]