81531612

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1699}}^1$

素因数の和:1783

約数の個数: 72

約数和(自身を含む): 217817600

約数和(自身を除く): 136285988

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 43, 62, 86, 93, 124, 129, 172, 186, 258, 279, 372, 387, 516, 558, 774, 1116, 1333, 1548, 1699, 2666, 3398, 3999, 5097, 5332, 6796, 7998, 10194, 11997, 15291, 15996, 20388, 23994, 30582, 47988, 52669, 61164, 73057, 105338, 146114, 158007, 210676, 219171, 292228, 316014, 438342, 474021, 632028, 657513, 876684, 948042, 1315026, 1896084, 2264767, 2630052, 4529534, 6794301, 9059068, 13588602, 20382903, 27177204, 40765806, 81531612]

約数ペア:

[(1, 81531612), (2, 40765806), (3, 27177204), (4, 20382903), (6, 13588602), (9, 9059068), (12, 6794301), (18, 4529534), (31, 2630052), (36, 2264767), (43, 1896084), (62, 1315026), (86, 948042), (93, 876684), (124, 657513), (129, 632028), (172, 474021), (186, 438342), (258, 316014), (279, 292228), (372, 219171), (387, 210676), (516, 158007), (558, 146114), (774, 105338), (1116, 73057), (1333, 61164), (1548, 52669), (1699, 47988), (2666, 30582), (3398, 23994), (3999, 20388), (5097, 15996), (5332, 15291), (6796, 11997), (7998, 10194)]