217888740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{28151}}^1$

素因数の和:28209

約数の個数: 72

約数和(自身を含む): 676323648

約数和(自身を除く): 458434908

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 28151, 56302, 84453, 112604, 140755, 168906, 253359, 281510, 337812, 422265, 506718, 563020, 844530, 1013436, 1210493, 1266795, 1689060, 2420986, 2533590, 3631479, 4841972, 5067180, 6052465, 7262958, 10894437, 12104930, 14525916, 18157395, 21788874, 24209860, 36314790, 43577748, 54472185, 72629580, 108944370, 217888740]

約数ペア:

[(1, 217888740), (2, 108944370), (3, 72629580), (4, 54472185), (5, 43577748), (6, 36314790), (9, 24209860), (10, 21788874), (12, 18157395), (15, 14525916), (18, 12104930), (20, 10894437), (30, 7262958), (36, 6052465), (43, 5067180), (45, 4841972), (60, 3631479), (86, 2533590), (90, 2420986), (129, 1689060), (172, 1266795), (180, 1210493), (215, 1013436), (258, 844530), (387, 563020), (430, 506718), (516, 422265), (645, 337812), (774, 281510), (860, 253359), (1290, 168906), (1548, 140755), (1935, 112604), (2580, 84453), (3870, 56302), (7740, 28151)]