81330716

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:714

約数の個数: 48

約数和(自身を含む): 157301760

約数和(自身を除く): 75971044

約数列:

[1, 2, 4, 19, 38, 41, 43, 76, 82, 86, 164, 172, 607, 779, 817, 1214, 1558, 1634, 1763, 2428, 3116, 3268, 3526, 7052, 11533, 23066, 24887, 26101, 33497, 46132, 49774, 52202, 66994, 99548, 104404, 133988, 472853, 495919, 945706, 991838, 1070141, 1891412, 1983676, 2140282, 4280564, 20332679, 40665358, 81330716]

約数ペア:

[(1, 81330716), (2, 40665358), (4, 20332679), (19, 4280564), (38, 2140282), (41, 1983676), (43, 1891412), (76, 1070141), (82, 991838), (86, 945706), (164, 495919), (172, 472853), (607, 133988), (779, 104404), (817, 99548), (1214, 66994), (1558, 52202), (1634, 49774), (1763, 46132), (2428, 33497), (3116, 26101), (3268, 24887), (3526, 23066), (7052, 11533)]