20178562855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{631}}^1\times {\mathrm{2539}}^1$

素因数の和:3415

約数の個数: 32

約数和(自身を含む): 26583436800

約数和(自身を除く): 6404873945

約数列:

[1, 5, 11, 55, 229, 631, 1145, 2519, 2539, 3155, 6941, 12595, 12695, 27929, 34705, 139645, 144499, 581431, 722495, 1589489, 1602109, 2907155, 6395741, 7947445, 8010545, 17623199, 31978705, 88115995, 366882961, 1834414805, 4035712571, 20178562855]

約数ペア:

[(1, 20178562855), (5, 4035712571), (11, 1834414805), (55, 366882961), (229, 88115995), (631, 31978705), (1145, 17623199), (2519, 8010545), (2539, 7947445), (3155, 6395741), (6941, 2907155), (12595, 1602109), (12695, 1589489), (27929, 722495), (34705, 581431), (139645, 144499)]