488778895

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{421}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 686982240

約数和(自身を除く): 198203345

約数列:

[1, 5, 11, 19, 55, 95, 101, 121, 209, 421, 505, 605, 1045, 1111, 1919, 2105, 2299, 4631, 5555, 7999, 9595, 11495, 12221, 21109, 23155, 39995, 42521, 50941, 61105, 87989, 105545, 212605, 232199, 254705, 439945, 467731, 807899, 967879, 1160995, 2338655, 4039495, 4839395, 5145041, 8886889, 25725205, 44434445, 97755779, 488778895]

約数ペア:

[(1, 488778895), (5, 97755779), (11, 44434445), (19, 25725205), (55, 8886889), (95, 5145041), (101, 4839395), (121, 4039495), (209, 2338655), (421, 1160995), (505, 967879), (605, 807899), (1045, 467731), (1111, 439945), (1919, 254705), (2105, 232199), (2299, 212605), (4631, 105545), (5555, 87989), (7999, 61105), (9595, 50941), (11495, 42521), (12221, 39995), (21109, 23155)]