28861988

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 57153600

約数和(自身を除く): 28291612

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 89, 178, 251, 323, 356, 502, 646, 1004, 1292, 1513, 1691, 3026, 3382, 4267, 4769, 6052, 6764, 8534, 9538, 17068, 19076, 22339, 28747, 44678, 57494, 81073, 89356, 114988, 162146, 324292, 379763, 424441, 759526, 848882, 1519052, 1697764, 7215497, 14430994, 28861988]

約数ペア:

[(1, 28861988), (2, 14430994), (4, 7215497), (17, 1697764), (19, 1519052), (34, 848882), (38, 759526), (68, 424441), (76, 379763), (89, 324292), (178, 162146), (251, 114988), (323, 89356), (356, 81073), (502, 57494), (646, 44678), (1004, 28747), (1292, 22339), (1513, 19076), (1691, 17068), (3026, 9538), (3382, 8534), (4267, 6764), (4769, 6052)]