18980491816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1549}}^1\times {\mathrm{10711}}^1$

素因数の和:12290

約数の個数: 64

約数和(自身を含む): 41841072000

約数和(自身を除く): 22860580184

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 1549, 3098, 6196, 10711, 12392, 17039, 20137, 21422, 34078, 40274, 42844, 68156, 80548, 85688, 117821, 136312, 139243, 161096, 221507, 235642, 278486, 443014, 471284, 556972, 886028, 942568, 1113944, 1531673, 1772056, 3063346, 6126692, 12253384, 16591339, 33182678, 66365356, 132730712, 182504729, 215687407, 365009458, 431374814, 730018916, 862749628, 1460037832, 1725499256, 2372561477, 4745122954, 9490245908, 18980491816]

約数ペア:

[(1, 18980491816), (2, 9490245908), (4, 4745122954), (8, 2372561477), (11, 1725499256), (13, 1460037832), (22, 862749628), (26, 730018916), (44, 431374814), (52, 365009458), (88, 215687407), (104, 182504729), (143, 132730712), (286, 66365356), (572, 33182678), (1144, 16591339), (1549, 12253384), (3098, 6126692), (6196, 3063346), (10711, 1772056), (12392, 1531673), (17039, 1113944), (20137, 942568), (21422, 886028), (34078, 556972), (40274, 471284), (42844, 443014), (68156, 278486), (80548, 235642), (85688, 221507), (117821, 161096), (136312, 139243)]