18707580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2417}}^1$

素因数の和:2475

約数の個数: 72

約数和(自身を含む): 58090032

約数和(自身を除く): 39382452

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, 2417, 2580, 3870, 4834, 7251, 7740, 9668, 12085, 14502, 21753, 24170, 29004, 36255, 43506, 48340, 72510, 87012, 103931, 108765, 145020, 207862, 217530, 311793, 415724, 435060, 519655, 623586, 935379, 1039310, 1247172, 1558965, 1870758, 2078620, 3117930, 3741516, 4676895, 6235860, 9353790, 18707580]

約数ペア:

[(1, 18707580), (2, 9353790), (3, 6235860), (4, 4676895), (5, 3741516), (6, 3117930), (9, 2078620), (10, 1870758), (12, 1558965), (15, 1247172), (18, 1039310), (20, 935379), (30, 623586), (36, 519655), (43, 435060), (45, 415724), (60, 311793), (86, 217530), (90, 207862), (129, 145020), (172, 108765), (180, 103931), (215, 87012), (258, 72510), (387, 48340), (430, 43506), (516, 36255), (645, 29004), (774, 24170), (860, 21753), (1290, 14502), (1548, 12085), (1935, 9668), (2417, 7740), (2580, 7251), (3870, 4834)]