20197616960

素因数分解:

$2^6\times 5^1\times {\mathrm{317}}^1\times {\mathrm{199109}}^1$

素因数の和:199443

約数の個数: 56

約数和(自身を含む): 48247538760

約数和(自身を除く): 28049921800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 317, 320, 634, 1268, 1585, 2536, 3170, 5072, 6340, 10144, 12680, 20288, 25360, 50720, 101440, 199109, 398218, 796436, 995545, 1592872, 1991090, 3185744, 3982180, 6371488, 7964360, 12742976, 15928720, 31857440, 63117553, 63714880, 126235106, 252470212, 315587765, 504940424, 631175530, 1009880848, 1262351060, 2019761696, 2524702120, 4039523392, 5049404240, 10098808480, 20197616960]

約数ペア:

[(1, 20197616960), (2, 10098808480), (4, 5049404240), (5, 4039523392), (8, 2524702120), (10, 2019761696), (16, 1262351060), (20, 1009880848), (32, 631175530), (40, 504940424), (64, 315587765), (80, 252470212), (160, 126235106), (317, 63714880), (320, 63117553), (634, 31857440), (1268, 15928720), (1585, 12742976), (2536, 7964360), (3170, 6371488), (5072, 3982180), (6340, 3185744), (10144, 1991090), (12680, 1592872), (20288, 995545), (25360, 796436), (50720, 398218), (101440, 199109)]