81681054

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{709}}^1$

素因数の和:945

約数の個数: 64

約数和(自身を含む): 202298880

約数和(自身を除く): 120617826

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 211, 273, 422, 546, 633, 709, 1266, 1418, 1477, 2127, 2743, 2954, 4254, 4431, 4963, 5486, 8229, 8862, 9217, 9926, 14889, 16458, 18434, 19201, 27651, 29778, 38402, 55302, 57603, 64519, 115206, 129038, 149599, 193557, 299198, 387114, 448797, 897594, 1047193, 1944787, 2094386, 3141579, 3889574, 5834361, 6283158, 11668722, 13613509, 27227018, 40840527, 81681054]

約数ペア:

[(1, 81681054), (2, 40840527), (3, 27227018), (6, 13613509), (7, 11668722), (13, 6283158), (14, 5834361), (21, 3889574), (26, 3141579), (39, 2094386), (42, 1944787), (78, 1047193), (91, 897594), (182, 448797), (211, 387114), (273, 299198), (422, 193557), (546, 149599), (633, 129038), (709, 115206), (1266, 64519), (1418, 57603), (1477, 55302), (2127, 38402), (2743, 29778), (2954, 27651), (4254, 19201), (4431, 18434), (4963, 16458), (5486, 14889), (8229, 9926), (8862, 9217)]