20804025

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{167}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 37997568

約数和(自身を除く): 17193543

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 151, 165, 167, 275, 453, 501, 755, 825, 835, 1661, 1837, 2265, 2505, 3775, 4175, 4983, 5511, 8305, 9185, 11325, 12525, 24915, 25217, 27555, 41525, 45925, 75651, 124575, 126085, 137775, 277387, 378255, 630425, 832161, 1386935, 1891275, 4160805, 6934675, 20804025]

約数ペア:

[(1, 20804025), (3, 6934675), (5, 4160805), (11, 1891275), (15, 1386935), (25, 832161), (33, 630425), (55, 378255), (75, 277387), (151, 137775), (165, 126085), (167, 124575), (275, 75651), (453, 45925), (501, 41525), (755, 27555), (825, 25217), (835, 24915), (1661, 12525), (1837, 11325), (2265, 9185), (2505, 8305), (3775, 5511), (4175, 4983)]