20129175

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2711}}^1$

素因数の和:2741

約数の個数: 48

約数和(自身を含む): 40354560

約数和(自身を除く): 20225385

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 135, 165, 225, 275, 297, 495, 675, 825, 1485, 2475, 2711, 7425, 8133, 13555, 24399, 29821, 40665, 67775, 73197, 89463, 121995, 149105, 203325, 268389, 365985, 447315, 609975, 745525, 805167, 1341945, 1829925, 2236575, 4025835, 6709725, 20129175]

約数ペア:

[(1, 20129175), (3, 6709725), (5, 4025835), (9, 2236575), (11, 1829925), (15, 1341945), (25, 805167), (27, 745525), (33, 609975), (45, 447315), (55, 365985), (75, 268389), (99, 203325), (135, 149105), (165, 121995), (225, 89463), (275, 73197), (297, 67775), (495, 40665), (675, 29821), (825, 24399), (1485, 13555), (2475, 8133), (2711, 7425)]