81728595

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1$

素因数の和:111

約数の個数: 120

約数和(自身を含む): 170389296

約数和(自身を除く): 88660701

約数列:

[1, 3, 5, 9, 13, 15, 19, 27, 39, 43, 45, 57, 65, 81, 95, 117, 129, 135, 171, 195, 215, 247, 285, 351, 361, 387, 405, 513, 559, 585, 645, 741, 817, 855, 1053, 1083, 1161, 1235, 1539, 1677, 1755, 1805, 1935, 2223, 2451, 2565, 2795, 3249, 3483, 3705, 4085, 4693, 5031, 5265, 5415, 5805, 6669, 7353, 7695, 8385, 9747, 10621, 11115, 12255, 14079, 15093, 15523, 16245, 17415, 20007, 22059, 23465, 25155, 29241, 31863, 33345, 36765, 42237, 45279, 46569, 48735, 53105, 66177, 70395, 75465, 77615, 95589, 100035, 110295, 126711, 139707, 146205, 159315, 201799, 211185, 226395, 232845, 286767, 330885, 380133, 419121, 477945, 605397, 633555, 698535, 860301, 1008995, 1257363, 1433835, 1816191, 1900665, 2095605, 3026985, 4301505, 5448573, 6286815, 9080955, 16345719, 27242865, 81728595]

約数ペア:

[(1, 81728595), (3, 27242865), (5, 16345719), (9, 9080955), (13, 6286815), (15, 5448573), (19, 4301505), (27, 3026985), (39, 2095605), (43, 1900665), (45, 1816191), (57, 1433835), (65, 1257363), (81, 1008995), (95, 860301), (117, 698535), (129, 633555), (135, 605397), (171, 477945), (195, 419121), (215, 380133), (247, 330885), (285, 286767), (351, 232845), (361, 226395), (387, 211185), (405, 201799), (513, 159315), (559, 146205), (585, 139707), (645, 126711), (741, 110295), (817, 100035), (855, 95589), (1053, 77615), (1083, 75465), (1161, 70395), (1235, 66177), (1539, 53105), (1677, 48735), (1755, 46569), (1805, 45279), (1935, 42237), (2223, 36765), (2451, 33345), (2565, 31863), (2795, 29241), (3249, 25155), (3483, 23465), (3705, 22059), (4085, 20007), (4693, 17415), (5031, 16245), (5265, 15523), (5415, 15093), (5805, 14079), (6669, 12255), (7353, 11115), (7695, 10621), (8385, 9747)]