20161578560

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1465231}}^1$

素因数の和:1465291

約数の個数: 56

約数和(自身を含む): 49126298496

約数和(自身を除く): 28964719936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 160, 172, 215, 320, 344, 430, 688, 860, 1376, 1720, 2752, 3440, 6880, 13760, 1465231, 2930462, 5860924, 7326155, 11721848, 14652310, 23443696, 29304620, 46887392, 58609240, 63004933, 93774784, 117218480, 126009866, 234436960, 252019732, 315024665, 468873920, 504039464, 630049330, 1008078928, 1260098660, 2016157856, 2520197320, 4032315712, 5040394640, 10080789280, 20161578560]

約数ペア:

[(1, 20161578560), (2, 10080789280), (4, 5040394640), (5, 4032315712), (8, 2520197320), (10, 2016157856), (16, 1260098660), (20, 1008078928), (32, 630049330), (40, 504039464), (43, 468873920), (64, 315024665), (80, 252019732), (86, 234436960), (160, 126009866), (172, 117218480), (215, 93774784), (320, 63004933), (344, 58609240), (430, 46887392), (688, 29304620), (860, 23443696), (1376, 14652310), (1720, 11721848), (2752, 7326155), (3440, 5860924), (6880, 2930462), (13760, 1465231)]