77667820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{653}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 172499040

約数和(自身を除く): 94831220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 313, 380, 626, 653, 1252, 1306, 1565, 2612, 3130, 3265, 5947, 6260, 6530, 11894, 12407, 13060, 23788, 24814, 29735, 49628, 59470, 62035, 118940, 124070, 204389, 248140, 408778, 817556, 1021945, 2043890, 3883391, 4087780, 7766782, 15533564, 19416955, 38833910, 77667820]

約数ペア:

[(1, 77667820), (2, 38833910), (4, 19416955), (5, 15533564), (10, 7766782), (19, 4087780), (20, 3883391), (38, 2043890), (76, 1021945), (95, 817556), (190, 408778), (313, 248140), (380, 204389), (626, 124070), (653, 118940), (1252, 62035), (1306, 59470), (1565, 49628), (2612, 29735), (3130, 24814), (3265, 23788), (5947, 13060), (6260, 12407), (6530, 11894)]