20880012

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{5387}}^1$

素因数の和:5430

約数の個数: 48

約数和(自身を含む): 54311040

約数和(自身を除く): 33431028

約数列:

[1, 2, 3, 4, 6, 12, 17, 19, 34, 38, 51, 57, 68, 76, 102, 114, 204, 228, 323, 646, 969, 1292, 1938, 3876, 5387, 10774, 16161, 21548, 32322, 64644, 91579, 102353, 183158, 204706, 274737, 307059, 366316, 409412, 549474, 614118, 1098948, 1228236, 1740001, 3480002, 5220003, 6960004, 10440006, 20880012]

約数ペア:

[(1, 20880012), (2, 10440006), (3, 6960004), (4, 5220003), (6, 3480002), (12, 1740001), (17, 1228236), (19, 1098948), (34, 614118), (38, 549474), (51, 409412), (57, 366316), (68, 307059), (76, 274737), (102, 204706), (114, 183158), (204, 102353), (228, 91579), (323, 64644), (646, 32322), (969, 21548), (1292, 16161), (1938, 10774), (3876, 5387)]