20254725

素因数分解:

$3^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{811}}^1$

素因数の和:867

約数の個数: 48

約数和(自身を含む): 38261440

約数和(自身を除く): 18006715

約数列:

[1, 3, 5, 9, 15, 25, 27, 37, 45, 75, 111, 135, 185, 225, 333, 555, 675, 811, 925, 999, 1665, 2433, 2775, 4055, 4995, 7299, 8325, 12165, 20275, 21897, 24975, 30007, 36495, 60825, 90021, 109485, 150035, 182475, 270063, 450105, 547425, 750175, 810189, 1350315, 2250525, 4050945, 6751575, 20254725]

約数ペア:

[(1, 20254725), (3, 6751575), (5, 4050945), (9, 2250525), (15, 1350315), (25, 810189), (27, 750175), (37, 547425), (45, 450105), (75, 270063), (111, 182475), (135, 150035), (185, 109485), (225, 90021), (333, 60825), (555, 36495), (675, 30007), (811, 24975), (925, 21897), (999, 20275), (1665, 12165), (2433, 8325), (2775, 7299), (4055, 4995)]