18883921065

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1\times {\mathrm{1223}}^1$

素因数の和:1958

約数の個数: 64

約数和(自身を含む): 31827603456

約数和(自身を除く): 12943682391

約数列:

[1, 3, 5, 15, 37, 43, 111, 129, 185, 215, 555, 645, 647, 1223, 1591, 1941, 3235, 3669, 4773, 6115, 7955, 9705, 18345, 23865, 23939, 27821, 45251, 52589, 71817, 83463, 119695, 135753, 139105, 157767, 226255, 262945, 359085, 417315, 678765, 788835, 791281, 1029377, 1945793, 2373843, 3088131, 3956405, 5146885, 5837379, 9728965, 11869215, 15440655, 29186895, 29277397, 34025083, 87832191, 102075249, 146386985, 170125415, 439160955, 510376245, 1258928071, 3776784213, 6294640355, 18883921065]

約数ペア:

[(1, 18883921065), (3, 6294640355), (5, 3776784213), (15, 1258928071), (37, 510376245), (43, 439160955), (111, 170125415), (129, 146386985), (185, 102075249), (215, 87832191), (555, 34025083), (645, 29277397), (647, 29186895), (1223, 15440655), (1591, 11869215), (1941, 9728965), (3235, 5837379), (3669, 5146885), (4773, 3956405), (6115, 3088131), (7955, 2373843), (9705, 1945793), (18345, 1029377), (23865, 791281), (23939, 788835), (27821, 678765), (45251, 417315), (52589, 359085), (71817, 262945), (83463, 226255), (119695, 157767), (135753, 139105)]