20529900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{22811}}^1$

素因数の和:22831

約数の個数: 54

約数和(自身を含む): 64352652

約数和(自身を除く): 43822752

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 22811, 45622, 68433, 91244, 114055, 136866, 205299, 228110, 273732, 342165, 410598, 456220, 570275, 684330, 821196, 1026495, 1140550, 1368660, 1710825, 2052990, 2281100, 3421650, 4105980, 5132475, 6843300, 10264950, 20529900]

約数ペア:

[(1, 20529900), (2, 10264950), (3, 6843300), (4, 5132475), (5, 4105980), (6, 3421650), (9, 2281100), (10, 2052990), (12, 1710825), (15, 1368660), (18, 1140550), (20, 1026495), (25, 821196), (30, 684330), (36, 570275), (45, 456220), (50, 410598), (60, 342165), (75, 273732), (90, 228110), (100, 205299), (150, 136866), (180, 114055), (225, 91244), (300, 68433), (450, 45622), (900, 22811)]