20042775

素因数分解:

$3^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{1291}}^1$

素因数の和:1333

約数の個数: 48

約数和(自身を含む): 38449920

約数和(自身を除く): 18407145

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 115, 135, 207, 225, 345, 575, 621, 675, 1035, 1291, 1725, 3105, 3873, 5175, 6455, 11619, 15525, 19365, 29693, 32275, 34857, 58095, 89079, 96825, 148465, 174285, 267237, 290475, 445395, 742325, 801711, 871425, 1336185, 2226975, 4008555, 6680925, 20042775]

約数ペア:

[(1, 20042775), (3, 6680925), (5, 4008555), (9, 2226975), (15, 1336185), (23, 871425), (25, 801711), (27, 742325), (45, 445395), (69, 290475), (75, 267237), (115, 174285), (135, 148465), (207, 96825), (225, 89079), (345, 58095), (575, 34857), (621, 32275), (675, 29693), (1035, 19365), (1291, 15525), (1725, 11619), (3105, 6455), (3873, 5175)]