20481228

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2671}}^1$

素因数の和:2755

約数の個数: 48

約数和(自身を含む): 53867520

約数和(自身を除く): 33386292

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2556, 2671, 3834, 5342, 7668, 8013, 10684, 16026, 24039, 32052, 48078, 72117, 96156, 144234, 189641, 288468, 379282, 568923, 758564, 1137846, 1706769, 2275692, 3413538, 5120307, 6827076, 10240614, 20481228]

約数ペア:

[(1, 20481228), (2, 10240614), (3, 6827076), (4, 5120307), (6, 3413538), (9, 2275692), (12, 1706769), (18, 1137846), (27, 758564), (36, 568923), (54, 379282), (71, 288468), (108, 189641), (142, 144234), (213, 96156), (284, 72117), (426, 48078), (639, 32052), (852, 24039), (1278, 16026), (1917, 10684), (2556, 8013), (2671, 7668), (3834, 5342)]