20210820160

素因数分解:

$2^6\times 5^1\times {\mathrm{311}}^2\times {\mathrm{653}}^1$

素因数の和:1292

約数の個数: 84

約数和(自身を含む): 48356201484

約数和(自身を除く): 28145381324

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 311, 320, 622, 653, 1244, 1306, 1555, 2488, 2612, 3110, 3265, 4976, 5224, 6220, 6530, 9952, 10448, 12440, 13060, 19904, 20896, 24880, 26120, 41792, 49760, 52240, 96721, 99520, 104480, 193442, 203083, 208960, 386884, 406166, 483605, 773768, 812332, 967210, 1015415, 1547536, 1624664, 1934420, 2030830, 3095072, 3249328, 3868840, 4061660, 6190144, 6498656, 7737680, 8123320, 12997312, 15475360, 16246640, 30950720, 32493280, 63158813, 64986560, 126317626, 252635252, 315794065, 505270504, 631588130, 1010541008, 1263176260, 2021082016, 2526352520, 4042164032, 5052705040, 10105410080, 20210820160]

約数ペア:

[(1, 20210820160), (2, 10105410080), (4, 5052705040), (5, 4042164032), (8, 2526352520), (10, 2021082016), (16, 1263176260), (20, 1010541008), (32, 631588130), (40, 505270504), (64, 315794065), (80, 252635252), (160, 126317626), (311, 64986560), (320, 63158813), (622, 32493280), (653, 30950720), (1244, 16246640), (1306, 15475360), (1555, 12997312), (2488, 8123320), (2612, 7737680), (3110, 6498656), (3265, 6190144), (4976, 4061660), (5224, 3868840), (6220, 3249328), (6530, 3095072), (9952, 2030830), (10448, 1934420), (12440, 1624664), (13060, 1547536), (19904, 1015415), (20896, 967210), (24880, 812332), (26120, 773768), (41792, 483605), (49760, 406166), (52240, 386884), (96721, 208960), (99520, 203083), (104480, 193442)]