20373375

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^2\times {\mathrm{449}}^1$

素因数の和:489

約数の個数: 48

約数和(自身を含む): 37346400

約数和(自身を除く): 16973025

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 121, 125, 165, 275, 363, 375, 449, 605, 825, 1347, 1375, 1815, 2245, 3025, 4125, 4939, 6735, 9075, 11225, 14817, 15125, 24695, 33675, 45375, 54329, 56125, 74085, 123475, 162987, 168375, 271645, 370425, 617375, 814935, 1358225, 1852125, 4074675, 6791125, 20373375]

約数ペア:

[(1, 20373375), (3, 6791125), (5, 4074675), (11, 1852125), (15, 1358225), (25, 814935), (33, 617375), (55, 370425), (75, 271645), (121, 168375), (125, 162987), (165, 123475), (275, 74085), (363, 56125), (375, 54329), (449, 45375), (605, 33675), (825, 24695), (1347, 15125), (1375, 14817), (1815, 11225), (2245, 9075), (3025, 6735), (4125, 4939)]