20320696

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^2$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 43235640

約数和(自身を除く): 22914944

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 79, 88, 148, 158, 296, 316, 407, 632, 814, 869, 1628, 1738, 2923, 3256, 3476, 5846, 6241, 6952, 11692, 12482, 23384, 24964, 32153, 49928, 64306, 68651, 128612, 137302, 230917, 257224, 274604, 461834, 549208, 923668, 1847336, 2540087, 5080174, 10160348, 20320696]

約数ペア:

[(1, 20320696), (2, 10160348), (4, 5080174), (8, 2540087), (11, 1847336), (22, 923668), (37, 549208), (44, 461834), (74, 274604), (79, 257224), (88, 230917), (148, 137302), (158, 128612), (296, 68651), (316, 64306), (407, 49928), (632, 32153), (814, 24964), (869, 23384), (1628, 12482), (1738, 11692), (2923, 6952), (3256, 6241), (3476, 5846)]