20728522076

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{1171}}^1\times {\mathrm{260317}}^1$

素因数の和:261509

約数の個数: 24

約数和(自身を含む): 38441679696

約数和(自身を除く): 17713157620

約数列:

[1, 2, 4, 17, 34, 68, 1171, 2342, 4684, 19907, 39814, 79628, 260317, 520634, 1041268, 4425389, 8850778, 17701556, 304831207, 609662414, 1219324828, 5182130519, 10364261038, 20728522076]

約数ペア:

[(1, 20728522076), (2, 10364261038), (4, 5182130519), (17, 1219324828), (34, 609662414), (68, 304831207), (1171, 17701556), (2342, 8850778), (4684, 4425389), (19907, 1041268), (39814, 520634), (79628, 260317)]