81757260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34939}}^1$

素因数の和:34967

約数の個数: 72

約数和(自身を含む): 267081360

約数和(自身を除く): 185324100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 34939, 69878, 104817, 139756, 174695, 209634, 314451, 349390, 419268, 454207, 524085, 628902, 698780, 908414, 1048170, 1257804, 1362621, 1572255, 1816828, 2096340, 2271035, 2725242, 3144510, 4087863, 4542070, 5450484, 6289020, 6813105, 8175726, 9084140, 13626210, 16351452, 20439315, 27252420, 40878630, 81757260]

約数ペア:

[(1, 81757260), (2, 40878630), (3, 27252420), (4, 20439315), (5, 16351452), (6, 13626210), (9, 9084140), (10, 8175726), (12, 6813105), (13, 6289020), (15, 5450484), (18, 4542070), (20, 4087863), (26, 3144510), (30, 2725242), (36, 2271035), (39, 2096340), (45, 1816828), (52, 1572255), (60, 1362621), (65, 1257804), (78, 1048170), (90, 908414), (117, 698780), (130, 628902), (156, 524085), (180, 454207), (195, 419268), (234, 349390), (260, 314451), (390, 209634), (468, 174695), (585, 139756), (780, 104817), (1170, 69878), (2340, 34939)]