51987780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1709}}^1$

素因数の和:1750

約数の個数: 108

約数和(自身を含む): 170859780

約数和(自身を除く): 118872000

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, 169, 180, 195, 234, 260, 338, 390, 468, 507, 585, 676, 780, 845, 1014, 1170, 1521, 1690, 1709, 2028, 2340, 2535, 3042, 3380, 3418, 5070, 5127, 6084, 6836, 7605, 8545, 10140, 10254, 15210, 15381, 17090, 20508, 22217, 25635, 30420, 30762, 34180, 44434, 51270, 61524, 66651, 76905, 88868, 102540, 111085, 133302, 153810, 199953, 222170, 266604, 288821, 307620, 333255, 399906, 444340, 577642, 666510, 799812, 866463, 999765, 1155284, 1333020, 1444105, 1732926, 1999530, 2599389, 2888210, 3465852, 3999060, 4332315, 5198778, 5776420, 8664630, 10397556, 12996945, 17329260, 25993890, 51987780]

約数ペア:

[(1, 51987780), (2, 25993890), (3, 17329260), (4, 12996945), (5, 10397556), (6, 8664630), (9, 5776420), (10, 5198778), (12, 4332315), (13, 3999060), (15, 3465852), (18, 2888210), (20, 2599389), (26, 1999530), (30, 1732926), (36, 1444105), (39, 1333020), (45, 1155284), (52, 999765), (60, 866463), (65, 799812), (78, 666510), (90, 577642), (117, 444340), (130, 399906), (156, 333255), (169, 307620), (180, 288821), (195, 266604), (234, 222170), (260, 199953), (338, 153810), (390, 133302), (468, 111085), (507, 102540), (585, 88868), (676, 76905), (780, 66651), (845, 61524), (1014, 51270), (1170, 44434), (1521, 34180), (1690, 30762), (1709, 30420), (2028, 25635), (2340, 22217), (2535, 20508), (3042, 17090), (3380, 15381), (3418, 15210), (5070, 10254), (5127, 10140), (6084, 8545), (6836, 7605)]