18888979655

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1307}}^1\times {\mathrm{1381}}^1$

素因数の和:2736

約数の個数: 64

約数和(自身を含む): 29153875968

約数和(自身を除く): 10264896313

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 299, 455, 805, 1307, 1381, 1495, 2093, 6535, 6905, 9149, 9667, 10465, 16991, 17953, 30061, 31763, 45745, 48335, 84955, 89765, 118937, 125671, 150305, 158815, 210427, 222341, 390793, 412919, 594685, 628355, 1052135, 1111705, 1804967, 1953965, 2064595, 2735551, 2890433, 9024835, 12634769, 13677755, 14452165, 23464571, 41514241, 63173845, 117322855, 164251997, 207571205, 290599687, 539685133, 821259985, 1452998435, 2698425665, 3777795931, 18888979655]

約数ペア:

[(1, 18888979655), (5, 3777795931), (7, 2698425665), (13, 1452998435), (23, 821259985), (35, 539685133), (65, 290599687), (91, 207571205), (115, 164251997), (161, 117322855), (299, 63173845), (455, 41514241), (805, 23464571), (1307, 14452165), (1381, 13677755), (1495, 12634769), (2093, 9024835), (6535, 2890433), (6905, 2735551), (9149, 2064595), (9667, 1953965), (10465, 1804967), (16991, 1111705), (17953, 1052135), (30061, 628355), (31763, 594685), (45745, 412919), (48335, 390793), (84955, 222341), (89765, 210427), (118937, 158815), (125671, 150305)]