20156175

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2297}}^1$

素因数の和:2329

約数の個数: 48

約数和(自身を含む): 39893280

約数和(自身を除く): 19737105

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 135, 195, 225, 325, 351, 585, 675, 975, 1755, 2297, 2925, 6891, 8775, 11485, 20673, 29861, 34455, 57425, 62019, 89583, 103365, 149305, 172275, 268749, 310095, 447915, 516825, 746525, 806247, 1343745, 1550475, 2239575, 4031235, 6718725, 20156175]

約数ペア:

[(1, 20156175), (3, 6718725), (5, 4031235), (9, 2239575), (13, 1550475), (15, 1343745), (25, 806247), (27, 746525), (39, 516825), (45, 447915), (65, 310095), (75, 268749), (117, 172275), (135, 149305), (195, 103365), (225, 89583), (325, 62019), (351, 57425), (585, 34455), (675, 29861), (975, 20673), (1755, 11485), (2297, 8775), (2925, 6891)]