142705820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{227}}^1$

素因数の和:339

約数の個数: 72

約数和(自身を含む): 326292624

約数和(自身を除く): 183586804

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 227, 340, 430, 454, 731, 860, 908, 1135, 1462, 1849, 2270, 2924, 3655, 3698, 3859, 4540, 7310, 7396, 7718, 9245, 9761, 14620, 15436, 18490, 19295, 19522, 31433, 36980, 38590, 39044, 48805, 62866, 77180, 97610, 125732, 157165, 165937, 195220, 314330, 331874, 419723, 628660, 663748, 829685, 839446, 1659370, 1678892, 2098615, 3318740, 4197230, 7135291, 8394460, 14270582, 28541164, 35676455, 71352910, 142705820]

約数ペア:

[(1, 142705820), (2, 71352910), (4, 35676455), (5, 28541164), (10, 14270582), (17, 8394460), (20, 7135291), (34, 4197230), (43, 3318740), (68, 2098615), (85, 1678892), (86, 1659370), (170, 839446), (172, 829685), (215, 663748), (227, 628660), (340, 419723), (430, 331874), (454, 314330), (731, 195220), (860, 165937), (908, 157165), (1135, 125732), (1462, 97610), (1849, 77180), (2270, 62866), (2924, 48805), (3655, 39044), (3698, 38590), (3859, 36980), (4540, 31433), (7310, 19522), (7396, 19295), (7718, 18490), (9245, 15436), (9761, 14620)]