20331368

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{739}}^1$

素因数の和:945

約数の個数: 32

約数和(自身を含む): 40404000

約数和(自身を除く): 20072632

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 181, 362, 724, 739, 1448, 1478, 2956, 3439, 5912, 6878, 13756, 14041, 27512, 28082, 56164, 112328, 133759, 267518, 535036, 1070072, 2541421, 5082842, 10165684, 20331368]

約数ペア:

[(1, 20331368), (2, 10165684), (4, 5082842), (8, 2541421), (19, 1070072), (38, 535036), (76, 267518), (152, 133759), (181, 112328), (362, 56164), (724, 28082), (739, 27512), (1448, 14041), (1478, 13756), (2956, 6878), (3439, 5912)]