20477928

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{947}}^1$

素因数の和:1026

約数の個数: 64

約数和(自身を含む): 55287360

約数和(自身を除く): 34809432

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 53, 68, 102, 106, 136, 159, 204, 212, 318, 408, 424, 636, 901, 947, 1272, 1802, 1894, 2703, 2841, 3604, 3788, 5406, 5682, 7208, 7576, 10812, 11364, 16099, 21624, 22728, 32198, 48297, 50191, 64396, 96594, 100382, 128792, 150573, 193188, 200764, 301146, 386376, 401528, 602292, 853247, 1204584, 1706494, 2559741, 3412988, 5119482, 6825976, 10238964, 20477928]

約数ペア:

[(1, 20477928), (2, 10238964), (3, 6825976), (4, 5119482), (6, 3412988), (8, 2559741), (12, 1706494), (17, 1204584), (24, 853247), (34, 602292), (51, 401528), (53, 386376), (68, 301146), (102, 200764), (106, 193188), (136, 150573), (159, 128792), (204, 100382), (212, 96594), (318, 64396), (408, 50191), (424, 48297), (636, 32198), (901, 22728), (947, 21624), (1272, 16099), (1802, 11364), (1894, 10812), (2703, 7576), (2841, 7208), (3604, 5682), (3788, 5406)]