20138456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2333}}^1$

素因数の和:2435

約数の個数: 32

約数和(自身を含む): 41171760

約数和(自身を除く): 21033304

約数列:

[1, 2, 4, 8, 13, 26, 52, 83, 104, 166, 332, 664, 1079, 2158, 2333, 4316, 4666, 8632, 9332, 18664, 30329, 60658, 121316, 193639, 242632, 387278, 774556, 1549112, 2517307, 5034614, 10069228, 20138456]

約数ペア:

[(1, 20138456), (2, 10069228), (4, 5034614), (8, 2517307), (13, 1549112), (26, 774556), (52, 387278), (83, 242632), (104, 193639), (166, 121316), (332, 60658), (664, 30329), (1079, 18664), (2158, 9332), (2333, 8632), (4316, 4666)]