20712692

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{739}}^1$

素因数の和:781

約数の個数: 72

約数和(自身を含む): 49603680

約数和(自身を除く): 28890988

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 143, 154, 182, 196, 286, 308, 364, 539, 572, 637, 739, 1001, 1078, 1274, 1478, 2002, 2156, 2548, 2956, 4004, 5173, 7007, 8129, 9607, 10346, 14014, 16258, 19214, 20692, 28028, 32516, 36211, 38428, 56903, 67249, 72422, 105677, 113806, 134498, 144844, 211354, 227612, 268996, 398321, 422708, 470743, 739739, 796642, 941486, 1479478, 1593284, 1882972, 2958956, 5178173, 10356346, 20712692]

約数ペア:

[(1, 20712692), (2, 10356346), (4, 5178173), (7, 2958956), (11, 1882972), (13, 1593284), (14, 1479478), (22, 941486), (26, 796642), (28, 739739), (44, 470743), (49, 422708), (52, 398321), (77, 268996), (91, 227612), (98, 211354), (143, 144844), (154, 134498), (182, 113806), (196, 105677), (286, 72422), (308, 67249), (364, 56903), (539, 38428), (572, 36211), (637, 32516), (739, 28028), (1001, 20692), (1078, 19214), (1274, 16258), (1478, 14014), (2002, 10346), (2156, 9607), (2548, 8129), (2956, 7007), (4004, 5173)]