201817784

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{263}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 442506240

約数和(自身を除く): 240688456

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 193, 263, 284, 386, 497, 526, 568, 772, 994, 1052, 1351, 1544, 1841, 1988, 2104, 2702, 3682, 3976, 5404, 7364, 10808, 13703, 14728, 18673, 27406, 37346, 50759, 54812, 74692, 95921, 101518, 109624, 130711, 149384, 191842, 203036, 261422, 355313, 383684, 406072, 522844, 710626, 767368, 1045688, 1421252, 2842504, 3603889, 7207778, 14415556, 25227223, 28831112, 50454446, 100908892, 201817784]

約数ペア:

[(1, 201817784), (2, 100908892), (4, 50454446), (7, 28831112), (8, 25227223), (14, 14415556), (28, 7207778), (56, 3603889), (71, 2842504), (142, 1421252), (193, 1045688), (263, 767368), (284, 710626), (386, 522844), (497, 406072), (526, 383684), (568, 355313), (772, 261422), (994, 203036), (1052, 191842), (1351, 149384), (1544, 130711), (1841, 109624), (1988, 101518), (2104, 95921), (2702, 74692), (3682, 54812), (3976, 50759), (5404, 37346), (7364, 27406), (10808, 18673), (13703, 14728)]