19680804

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3823}}^1$

素因数の和:3857

約数の個数: 72

約数和(自身を含む): 58461312

約数和(自身を除く): 38780508

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 198, 234, 286, 396, 429, 468, 572, 858, 1287, 1716, 2574, 3823, 5148, 7646, 11469, 15292, 22938, 34407, 42053, 45876, 49699, 68814, 84106, 99398, 126159, 137628, 149097, 168212, 198796, 252318, 298194, 378477, 447291, 504636, 546689, 596388, 756954, 894582, 1093378, 1513908, 1640067, 1789164, 2186756, 3280134, 4920201, 6560268, 9840402, 19680804]

約数ペア:

[(1, 19680804), (2, 9840402), (3, 6560268), (4, 4920201), (6, 3280134), (9, 2186756), (11, 1789164), (12, 1640067), (13, 1513908), (18, 1093378), (22, 894582), (26, 756954), (33, 596388), (36, 546689), (39, 504636), (44, 447291), (52, 378477), (66, 298194), (78, 252318), (99, 198796), (117, 168212), (132, 149097), (143, 137628), (156, 126159), (198, 99398), (234, 84106), (286, 68814), (396, 49699), (429, 45876), (468, 42053), (572, 34407), (858, 22938), (1287, 15292), (1716, 11469), (2574, 7646), (3823, 5148)]