20199312140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{659}}^1\times {\mathrm{31277}}^1$

素因数の和:31959

約数の個数: 72

約数和(自身を含む): 49420491120

約数和(自身を除く): 29221178980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 659, 980, 1318, 2636, 3295, 4613, 6590, 9226, 13180, 18452, 23065, 31277, 32291, 46130, 62554, 64582, 92260, 125108, 129164, 156385, 161455, 218939, 312770, 322910, 437878, 625540, 645820, 875756, 1094695, 1532573, 2189390, 3065146, 4378780, 6130292, 7662865, 15325730, 20611543, 30651460, 41223086, 82446172, 103057715, 144280801, 206115430, 288561602, 412230860, 577123204, 721404005, 1009965607, 1442808010, 2019931214, 2885616020, 4039862428, 5049828035, 10099656070, 20199312140]

約数ペア:

[(1, 20199312140), (2, 10099656070), (4, 5049828035), (5, 4039862428), (7, 2885616020), (10, 2019931214), (14, 1442808010), (20, 1009965607), (28, 721404005), (35, 577123204), (49, 412230860), (70, 288561602), (98, 206115430), (140, 144280801), (196, 103057715), (245, 82446172), (490, 41223086), (659, 30651460), (980, 20611543), (1318, 15325730), (2636, 7662865), (3295, 6130292), (4613, 4378780), (6590, 3065146), (9226, 2189390), (13180, 1532573), (18452, 1094695), (23065, 875756), (31277, 645820), (32291, 625540), (46130, 437878), (62554, 322910), (64582, 312770), (92260, 218939), (125108, 161455), (129164, 156385)]