20161567278

素因数分解:

$2^1\times 3^4\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{39749}}^1$

素因数の和:39895

約数の個数: 80

約数和(自身を含む): 47097072000

約数和(自身を除く): 26935504722

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 81, 93, 101, 162, 186, 202, 279, 303, 558, 606, 837, 909, 1674, 1818, 2511, 2727, 3131, 5022, 5454, 6262, 8181, 9393, 16362, 18786, 28179, 39749, 56358, 79498, 84537, 119247, 169074, 238494, 253611, 357741, 507222, 715482, 1073223, 1232219, 2146446, 2464438, 3219669, 3696657, 4014649, 6439338, 7393314, 8029298, 11089971, 12043947, 22179942, 24087894, 33269913, 36131841, 66539826, 72263682, 99809739, 108395523, 124454119, 199619478, 216791046, 248908238, 325186569, 373362357, 650373138, 746724714, 1120087071, 2240174142, 3360261213, 6720522426, 10080783639, 20161567278]

約数ペア:

[(1, 20161567278), (2, 10080783639), (3, 6720522426), (6, 3360261213), (9, 2240174142), (18, 1120087071), (27, 746724714), (31, 650373138), (54, 373362357), (62, 325186569), (81, 248908238), (93, 216791046), (101, 199619478), (162, 124454119), (186, 108395523), (202, 99809739), (279, 72263682), (303, 66539826), (558, 36131841), (606, 33269913), (837, 24087894), (909, 22179942), (1674, 12043947), (1818, 11089971), (2511, 8029298), (2727, 7393314), (3131, 6439338), (5022, 4014649), (5454, 3696657), (6262, 3219669), (8181, 2464438), (9393, 2146446), (16362, 1232219), (18786, 1073223), (28179, 715482), (39749, 507222), (56358, 357741), (79498, 253611), (84537, 238494), (119247, 169074)]