218071645

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 308730240

約数和(自身を除く): 90658595

約数列:

[1, 5, 11, 19, 55, 61, 95, 121, 209, 305, 311, 605, 671, 1045, 1159, 1555, 2299, 3355, 3421, 5795, 5909, 7381, 11495, 12749, 17105, 18971, 29545, 36905, 37631, 63745, 64999, 94855, 140239, 188155, 208681, 324995, 360449, 701195, 714989, 1043405, 1802245, 2295491, 3574945, 3964939, 11477455, 19824695, 43614329, 218071645]

約数ペア:

[(1, 218071645), (5, 43614329), (11, 19824695), (19, 11477455), (55, 3964939), (61, 3574945), (95, 2295491), (121, 1802245), (209, 1043405), (305, 714989), (311, 701195), (605, 360449), (671, 324995), (1045, 208681), (1159, 188155), (1555, 140239), (2299, 94855), (3355, 64999), (3421, 63745), (5795, 37631), (5909, 36905), (7381, 29545), (11495, 18971), (12749, 17105)]