15693778555

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{19949}}^1$

素因数の和:20013

約数の個数: 72

約数和(自身を含む): 24971814000

約数和(自身を除く): 9278035445

約数列:

[1, 5, 7, 13, 19, 35, 49, 65, 91, 95, 133, 169, 245, 247, 455, 637, 665, 845, 931, 1183, 1235, 1729, 3185, 3211, 4655, 5915, 8281, 8645, 12103, 16055, 19949, 22477, 41405, 60515, 99745, 112385, 139643, 157339, 259337, 379031, 698215, 786695, 977501, 1296685, 1815359, 1895155, 2653217, 3371381, 4887505, 4927403, 9076795, 12707513, 13266085, 16856905, 18572519, 23599667, 24637015, 34491821, 63537565, 64056239, 92862595, 117998335, 165197669, 172459105, 241442747, 320281195, 448393673, 825988345, 1207213735, 2241968365, 3138755711, 15693778555]

約数ペア:

[(1, 15693778555), (5, 3138755711), (7, 2241968365), (13, 1207213735), (19, 825988345), (35, 448393673), (49, 320281195), (65, 241442747), (91, 172459105), (95, 165197669), (133, 117998335), (169, 92862595), (245, 64056239), (247, 63537565), (455, 34491821), (637, 24637015), (665, 23599667), (845, 18572519), (931, 16856905), (1183, 13266085), (1235, 12707513), (1729, 9076795), (3185, 4927403), (3211, 4887505), (4655, 3371381), (5915, 2653217), (8281, 1895155), (8645, 1815359), (12103, 1296685), (16055, 977501), (19949, 786695), (22477, 698215), (41405, 379031), (60515, 259337), (99745, 157339), (112385, 139643)]