81331380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{34757}}^1$

素因数の和:34785

約数の個数: 72

約数和(自身を含む): 265690152

約数和(自身を除く): 184358772

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, 34757, 69514, 104271, 139028, 173785, 208542, 312813, 347570, 417084, 451841, 521355, 625626, 695140, 903682, 1042710, 1251252, 1355523, 1564065, 1807364, 2085420, 2259205, 2711046, 3128130, 4066569, 4518410, 5422092, 6256260, 6777615, 8133138, 9036820, 13555230, 16266276, 20332845, 27110460, 40665690, 81331380]

約数ペア:

[(1, 81331380), (2, 40665690), (3, 27110460), (4, 20332845), (5, 16266276), (6, 13555230), (9, 9036820), (10, 8133138), (12, 6777615), (13, 6256260), (15, 5422092), (18, 4518410), (20, 4066569), (26, 3128130), (30, 2711046), (36, 2259205), (39, 2085420), (45, 1807364), (52, 1564065), (60, 1355523), (65, 1251252), (78, 1042710), (90, 903682), (117, 695140), (130, 625626), (156, 521355), (180, 451841), (195, 417084), (234, 347570), (260, 312813), (390, 208542), (468, 173785), (585, 139028), (780, 104271), (1170, 69514), (2340, 34757)]