187979380

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{647}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 402796800

約数和(自身を除く): 214817420

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 199, 292, 365, 398, 647, 730, 796, 995, 1294, 1460, 1990, 2588, 3235, 3980, 6470, 12940, 14527, 29054, 47231, 58108, 72635, 94462, 128753, 145270, 188924, 236155, 257506, 290540, 472310, 515012, 643765, 944620, 1287530, 2575060, 9398969, 18797938, 37595876, 46994845, 93989690, 187979380]

約数ペア:

[(1, 187979380), (2, 93989690), (4, 46994845), (5, 37595876), (10, 18797938), (20, 9398969), (73, 2575060), (146, 1287530), (199, 944620), (292, 643765), (365, 515012), (398, 472310), (647, 290540), (730, 257506), (796, 236155), (995, 188924), (1294, 145270), (1460, 128753), (1990, 94462), (2588, 72635), (3235, 58108), (3980, 47231), (6470, 29054), (12940, 14527)]