20563875

素因数分解:

$3^5\times 5^3\times {\mathrm{677}}^1$

素因数の和:707

約数の個数: 48

約数和(自身を含む): 38499552

約数和(自身を除く): 17935677

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 243, 375, 405, 675, 677, 1125, 1215, 2025, 2031, 3375, 3385, 6075, 6093, 10125, 10155, 16925, 18279, 30375, 30465, 50775, 54837, 84625, 91395, 152325, 164511, 253875, 274185, 456975, 761625, 822555, 1370925, 2284875, 4112775, 6854625, 20563875]

約数ペア:

[(1, 20563875), (3, 6854625), (5, 4112775), (9, 2284875), (15, 1370925), (25, 822555), (27, 761625), (45, 456975), (75, 274185), (81, 253875), (125, 164511), (135, 152325), (225, 91395), (243, 84625), (375, 54837), (405, 50775), (675, 30465), (677, 30375), (1125, 18279), (1215, 16925), (2025, 10155), (2031, 10125), (3375, 6093), (3385, 6075)]