81270

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{43}}^1$

素因数の和:66

約数の個数: 64

約数和(自身を含む): 253440

約数和(自身を除く): 172170

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 43, 45, 54, 63, 70, 86, 90, 105, 126, 129, 135, 189, 210, 215, 258, 270, 301, 315, 378, 387, 430, 602, 630, 645, 774, 903, 945, 1161, 1290, 1505, 1806, 1890, 1935, 2322, 2709, 3010, 3870, 4515, 5418, 5805, 8127, 9030, 11610, 13545, 16254, 27090, 40635, 81270]

約数ペア:

[(1, 81270), (2, 40635), (3, 27090), (5, 16254), (6, 13545), (7, 11610), (9, 9030), (10, 8127), (14, 5805), (15, 5418), (18, 4515), (21, 3870), (27, 3010), (30, 2709), (35, 2322), (42, 1935), (43, 1890), (45, 1806), (54, 1505), (63, 1290), (70, 1161), (86, 945), (90, 903), (105, 774), (126, 645), (129, 630), (135, 602), (189, 430), (210, 387), (215, 378), (258, 315), (270, 301)]