20944275

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{479}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 38568960

約数和(自身を除く): 17624685

約数列:

[1, 3, 5, 11, 15, 25, 33, 53, 55, 75, 159, 165, 265, 275, 479, 583, 795, 825, 1325, 1437, 1749, 2395, 2915, 3975, 5269, 7185, 8745, 11975, 14575, 15807, 25387, 26345, 35925, 43725, 76161, 79035, 126935, 131725, 279257, 380805, 395175, 634675, 837771, 1396285, 1904025, 4188855, 6981425, 20944275]

約数ペア:

[(1, 20944275), (3, 6981425), (5, 4188855), (11, 1904025), (15, 1396285), (25, 837771), (33, 634675), (53, 395175), (55, 380805), (75, 279257), (159, 131725), (165, 126935), (265, 79035), (275, 76161), (479, 43725), (583, 35925), (795, 26345), (825, 25387), (1325, 15807), (1437, 14575), (1749, 11975), (2395, 8745), (2915, 7185), (3975, 5269)]