81419954

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 161021952

約数和(自身を除く): 79601998

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 77, 127, 154, 161, 181, 253, 254, 322, 362, 506, 889, 1267, 1397, 1771, 1778, 1991, 2534, 2794, 2921, 3542, 3982, 4163, 5842, 8326, 9779, 13937, 19558, 20447, 22987, 27874, 29141, 32131, 40894, 45793, 45974, 58282, 64262, 91586, 160909, 224917, 252857, 320551, 321818, 449834, 505714, 528701, 641102, 1057402, 1769999, 3539998, 3700907, 5815711, 7401814, 11631422, 40709977, 81419954]

約数ペア:

[(1, 81419954), (2, 40709977), (7, 11631422), (11, 7401814), (14, 5815711), (22, 3700907), (23, 3539998), (46, 1769999), (77, 1057402), (127, 641102), (154, 528701), (161, 505714), (181, 449834), (253, 321818), (254, 320551), (322, 252857), (362, 224917), (506, 160909), (889, 91586), (1267, 64262), (1397, 58282), (1771, 45974), (1778, 45793), (1991, 40894), (2534, 32131), (2794, 29141), (2921, 27874), (3542, 22987), (3982, 20447), (4163, 19558), (5842, 13937), (8326, 9779)]