71787128

素因数分解:

$2^3\times 7^1\times {\mathrm{397}}^1\times {\mathrm{3229}}^1$

素因数の和:3639

約数の個数: 32

約数和(自身を含む): 154264800

約数和(自身を除く): 82477672

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 397, 794, 1588, 2779, 3176, 3229, 5558, 6458, 11116, 12916, 22232, 22603, 25832, 45206, 90412, 180824, 1281913, 2563826, 5127652, 8973391, 10255304, 17946782, 35893564, 71787128]

約数ペア:

[(1, 71787128), (2, 35893564), (4, 17946782), (7, 10255304), (8, 8973391), (14, 5127652), (28, 2563826), (56, 1281913), (397, 180824), (794, 90412), (1588, 45206), (2779, 25832), (3176, 22603), (3229, 22232), (5558, 12916), (6458, 11116)]