20664435

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 18526605

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 53, 55, 85, 139, 159, 165, 187, 255, 265, 417, 561, 583, 695, 795, 901, 935, 1529, 1749, 2085, 2363, 2703, 2805, 2915, 4505, 4587, 7089, 7367, 7645, 8745, 9911, 11815, 13515, 22101, 22935, 25993, 29733, 35445, 36835, 49555, 77979, 81037, 110505, 125239, 129965, 148665, 243111, 375717, 389895, 405185, 626195, 1215555, 1377629, 1878585, 4132887, 6888145, 20664435]

約数ペア:

[(1, 20664435), (3, 6888145), (5, 4132887), (11, 1878585), (15, 1377629), (17, 1215555), (33, 626195), (51, 405185), (53, 389895), (55, 375717), (85, 243111), (139, 148665), (159, 129965), (165, 125239), (187, 110505), (255, 81037), (265, 77979), (417, 49555), (561, 36835), (583, 35445), (695, 29733), (795, 25993), (901, 22935), (935, 22101), (1529, 13515), (1749, 11815), (2085, 9911), (2363, 8745), (2703, 7645), (2805, 7367), (2915, 7089), (4505, 4587)]