20579625

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{1663}}^1$

素因数の和:1695

約数の個数: 48

約数和(自身を含む): 40495104

約数和(自身を除く): 19915479

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 125, 165, 225, 275, 375, 495, 825, 1125, 1375, 1663, 2475, 4125, 4989, 8315, 12375, 14967, 18293, 24945, 41575, 54879, 74835, 91465, 124725, 164637, 207875, 274395, 374175, 457325, 623625, 823185, 1371975, 1870875, 2286625, 4115925, 6859875, 20579625]

約数ペア:

[(1, 20579625), (3, 6859875), (5, 4115925), (9, 2286625), (11, 1870875), (15, 1371975), (25, 823185), (33, 623625), (45, 457325), (55, 374175), (75, 274395), (99, 207875), (125, 164637), (165, 124725), (225, 91465), (275, 74835), (375, 54879), (495, 41575), (825, 24945), (1125, 18293), (1375, 14967), (1663, 12375), (2475, 8315), (4125, 4989)]