20805648

素因数分解:

$2^4\times 3^1\times {\mathrm{127}}^1\times {\mathrm{3413}}^1$

素因数の和:3551

約数の個数: 40

約数和(自身を含む): 54187008

約数和(自身を除く): 33381360

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 127, 254, 381, 508, 762, 1016, 1524, 2032, 3048, 3413, 6096, 6826, 10239, 13652, 20478, 27304, 40956, 54608, 81912, 163824, 433451, 866902, 1300353, 1733804, 2600706, 3467608, 5201412, 6935216, 10402824, 20805648]

約数ペア:

[(1, 20805648), (2, 10402824), (3, 6935216), (4, 5201412), (6, 3467608), (8, 2600706), (12, 1733804), (16, 1300353), (24, 866902), (48, 433451), (127, 163824), (254, 81912), (381, 54608), (508, 40956), (762, 27304), (1016, 20478), (1524, 13652), (2032, 10239), (3048, 6826), (3413, 6096)]