839341940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{659}}^1\times {\mathrm{1481}}^1$

素因数の和:2192

約数の個数: 48

約数和(自身を含む): 1807565760

約数和(自身を除く): 968223820

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 659, 860, 1318, 1481, 2636, 2962, 3295, 5924, 6590, 7405, 13180, 14810, 28337, 29620, 56674, 63683, 113348, 127366, 141685, 254732, 283370, 318415, 566740, 636830, 975979, 1273660, 1951958, 3903916, 4879895, 9759790, 19519580, 41967097, 83934194, 167868388, 209835485, 419670970, 839341940]

約数ペア:

[(1, 839341940), (2, 419670970), (4, 209835485), (5, 167868388), (10, 83934194), (20, 41967097), (43, 19519580), (86, 9759790), (172, 4879895), (215, 3903916), (430, 1951958), (659, 1273660), (860, 975979), (1318, 636830), (1481, 566740), (2636, 318415), (2962, 283370), (3295, 254732), (5924, 141685), (6590, 127366), (7405, 113348), (13180, 63683), (14810, 56674), (28337, 29620)]