20358928

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{89}}^1$

素因数の和:172

約数の個数: 60

約数和(自身を含む): 43741620

約数和(自身を除く): 23382692

約数列:

[1, 2, 4, 8, 16, 17, 29, 34, 58, 68, 89, 116, 136, 178, 232, 272, 356, 464, 493, 712, 841, 986, 1424, 1513, 1682, 1972, 2581, 3026, 3364, 3944, 5162, 6052, 6728, 7888, 10324, 12104, 13456, 14297, 20648, 24208, 28594, 41296, 43877, 57188, 74849, 87754, 114376, 149698, 175508, 228752, 299396, 351016, 598792, 702032, 1197584, 1272433, 2544866, 5089732, 10179464, 20358928]

約数ペア:

[(1, 20358928), (2, 10179464), (4, 5089732), (8, 2544866), (16, 1272433), (17, 1197584), (29, 702032), (34, 598792), (58, 351016), (68, 299396), (89, 228752), (116, 175508), (136, 149698), (178, 114376), (232, 87754), (272, 74849), (356, 57188), (464, 43877), (493, 41296), (712, 28594), (841, 24208), (986, 20648), (1424, 14297), (1513, 13456), (1682, 12104), (1972, 10324), (2581, 7888), (3026, 6728), (3364, 6052), (3944, 5162)]