20123930416

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{6948871}}^1$

素因数の和:6949060

約数の個数: 20

約数和(自身を含む): 39205535824

約数和(自身を除く): 19081605408

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 6948871, 13897742, 27795484, 55590968, 111181936, 1257745651, 2515491302, 5030982604, 10061965208, 20123930416]

約数ペア:

[(1, 20123930416), (2, 10061965208), (4, 5030982604), (8, 2515491302), (16, 1257745651), (181, 111181936), (362, 55590968), (724, 27795484), (1448, 13897742), (2896, 6948871)]