20755864

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{659}}^1$

素因数の和:823

約数の個数: 32

約数和(自身を含む): 40550400

約数和(自身を除く): 19794536

約数列:

[1, 2, 4, 8, 31, 62, 124, 127, 248, 254, 508, 659, 1016, 1318, 2636, 3937, 5272, 7874, 15748, 20429, 31496, 40858, 81716, 83693, 163432, 167386, 334772, 669544, 2594483, 5188966, 10377932, 20755864]

約数ペア:

[(1, 20755864), (2, 10377932), (4, 5188966), (8, 2594483), (31, 669544), (62, 334772), (124, 167386), (127, 163432), (248, 83693), (254, 81716), (508, 40858), (659, 31496), (1016, 20429), (1318, 15748), (2636, 7874), (3937, 5272)]