71720478

素因数分解:

$2^1\times 3^7\times {\mathrm{19}}^1\times {\mathrm{863}}^1$

素因数の和:905

約数の個数: 64

約数和(自身を含む): 170035200

約数和(自身を除く): 98314722

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 81, 114, 162, 171, 243, 342, 486, 513, 729, 863, 1026, 1458, 1539, 1726, 2187, 2589, 3078, 4374, 4617, 5178, 7767, 9234, 13851, 15534, 16397, 23301, 27702, 32794, 41553, 46602, 49191, 69903, 83106, 98382, 139806, 147573, 209709, 295146, 419418, 442719, 629127, 885438, 1258254, 1328157, 1887381, 2656314, 3774762, 3984471, 7968942, 11953413, 23906826, 35860239, 71720478]

約数ペア:

[(1, 71720478), (2, 35860239), (3, 23906826), (6, 11953413), (9, 7968942), (18, 3984471), (19, 3774762), (27, 2656314), (38, 1887381), (54, 1328157), (57, 1258254), (81, 885438), (114, 629127), (162, 442719), (171, 419418), (243, 295146), (342, 209709), (486, 147573), (513, 139806), (729, 98382), (863, 83106), (1026, 69903), (1458, 49191), (1539, 46602), (1726, 41553), (2187, 32794), (2589, 27702), (3078, 23301), (4374, 16397), (4617, 15534), (5178, 13851), (7767, 9234)]