18779696

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:198

約数の個数: 80

約数和(自身を含む): 42747264

約数和(自身を除く): 23967568

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 47, 52, 68, 94, 104, 113, 136, 188, 208, 221, 226, 272, 376, 442, 452, 611, 752, 799, 884, 904, 1222, 1469, 1598, 1768, 1808, 1921, 2444, 2938, 3196, 3536, 3842, 4888, 5311, 5876, 6392, 7684, 9776, 10387, 10622, 11752, 12784, 15368, 20774, 21244, 23504, 24973, 30736, 41548, 42488, 49946, 69043, 83096, 84976, 90287, 99892, 138086, 166192, 180574, 199784, 276172, 361148, 399568, 552344, 722296, 1104688, 1173731, 1444592, 2347462, 4694924, 9389848, 18779696]

約数ペア:

[(1, 18779696), (2, 9389848), (4, 4694924), (8, 2347462), (13, 1444592), (16, 1173731), (17, 1104688), (26, 722296), (34, 552344), (47, 399568), (52, 361148), (68, 276172), (94, 199784), (104, 180574), (113, 166192), (136, 138086), (188, 99892), (208, 90287), (221, 84976), (226, 83096), (272, 69043), (376, 49946), (442, 42488), (452, 41548), (611, 30736), (752, 24973), (799, 23504), (884, 21244), (904, 20774), (1222, 15368), (1469, 12784), (1598, 11752), (1768, 10622), (1808, 10387), (1921, 9776), (2444, 7684), (2938, 6392), (3196, 5876), (3536, 5311), (3842, 4888)]