20732128

素因数分解:

$2^5\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:287

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 21603872

約数列:

[1, 2, 4, 8, 16, 32, 59, 79, 118, 139, 158, 236, 278, 316, 472, 556, 632, 944, 1112, 1264, 1888, 2224, 2528, 4448, 4661, 8201, 9322, 10981, 16402, 18644, 21962, 32804, 37288, 43924, 65608, 74576, 87848, 131216, 149152, 175696, 262432, 351392, 647879, 1295758, 2591516, 5183032, 10366064, 20732128]

約数ペア:

[(1, 20732128), (2, 10366064), (4, 5183032), (8, 2591516), (16, 1295758), (32, 647879), (59, 351392), (79, 262432), (118, 175696), (139, 149152), (158, 131216), (236, 87848), (278, 74576), (316, 65608), (472, 43924), (556, 37288), (632, 32804), (944, 21962), (1112, 18644), (1264, 16402), (1888, 10981), (2224, 9322), (2528, 8201), (4448, 4661)]