19680392

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 37778400

約数和(自身を除く): 18098008

約数列:

[1, 2, 4, 8, 89, 131, 178, 211, 262, 356, 422, 524, 712, 844, 1048, 1688, 11659, 18779, 23318, 27641, 37558, 46636, 55282, 75116, 93272, 110564, 150232, 221128, 2460049, 4920098, 9840196, 19680392]

約数ペア:

[(1, 19680392), (2, 9840196), (4, 4920098), (8, 2460049), (89, 221128), (131, 150232), (178, 110564), (211, 93272), (262, 75116), (356, 55282), (422, 46636), (524, 37558), (712, 27641), (844, 23318), (1048, 18779), (1688, 11659)]